Image copyright Kenneth Kong Image caption The logic question posted by Mr Kong is now known as 'Cheryl's Birthday' 
 
 A school maths question posted on Facebook by a Singaporean TV presenter has stumped thousands, and left many asking if that's really what is expected of Singaporean students. 
 
 The question asks readers to guess the birthday of a girl called Cheryl using the minimal clues she gives to her friends, Albert and Bernard. 
 
 Cheryl's Birthday was initially reported to be an examination question for 11-year-olds. 
 
 Students stressed by tough examinations is a perennial issue here, and Cheryl's Birthday reignited concerns that the education system was too challenging. 
 
 Image copyright facebook 
 
 But it later emerged it was for students aged about 15 taking part in last week's Singapore and Asian Schools Math Olympiads (Sasmo). 
 
 Organisers said the test was aimed at the top 40% and aimed to "sift out the better students", adding it was "important to clarify so that Singapore parents will not start to worry so much". 
 
 Image copyright Twitter 
 
 Kenneth Kong, who first posted the problem, told the BBC: "It's a really difficult question for younger kids, so that's why people were so shocked at first... but now that people know it's for older students, they just think it's quirky." 
 
 Media playback is unsupported on your device Media caption Author and mathematician Alex Bellos demonstrates how to solve the problem 
 
 Sasmo's executive director Henry Ong defended the question, saying there was "a place for some kind of logical and analytical thinking in the workplace and in our daily lives". 
 
 Image copyright Twitter 
 
 "We are not saying this problem is for every student... But if these kind of problems can be used to stretch the better students to sharpen their analytical power, why not?" 
 
 The question, which has been shared around the world, sparked a Twitter hashtag #cherylsbirthday and even a music track. 
 
 "After spending so much time together, thinking of Cheryl's birthdate, Albert and Bernard soon fell in love with each other and forgot all about Cheryl," said Elfy Bianca Hassan on Mr Kong's page. 
 
 "Dump her. Find other girls," suggested Nicholas Lim. 
 
 Image copyright Twitter 
 
 Others took umbrage at the wording. "I hope people picked up that the person who set the question needs to go for English grammar classes - there are at least two grammar errors," said Clarence Singam-Zhou. 
 
 So when is Cheryl's birthday? 
 
 The answer is 16 July, said Sasmo which posted the correct solution. 
 
 Image copyright Twitter 
 
 Sasmo also dismissed an "alternative solution" which resulted in 17 August. 
 
 Their rejection was that "since Bernard did not say that he does not know when Cheryl's birthday is, then how did Albert know that Bernard does not know?" 
 
 Problem solved. ||||| An American huntress has sparked fury on social media after posting pictures of herself with the corpses of a giraffe, warthog, kudu and impala during a trip to South Africa. 
 
 Sabrina Corgatelli, who is believed to come from Boise, Idaho, counted down the days on her Facebook profile to the “trip of a lifetime” to a private conservancy 20 kilometres from the country’s iconic Kruger National Park. 
 
 Before her trip, she posted a meme of Leonardo DiCaprio on her wall accompanied by the message: “To all the haters. Stay tuned, you’re gonna have so much more to be p***** off about.” 
 
 On July 25, just after it emerged that an iconic black-maned lion named Cecil had been killed in Zimbabwe by a foreign hunter - later revealed as Dr Walter Palmer, a US dentist - Miss Corgatelli began to post pictures of her kills. 
 
 Her first showed her crouching over the prone form of a massive kudu, a kind of African antelope with a white-striped body and spiralling horns. “Yesterday, day 1 an amazing day!!! Got my beautiful beautiful Kudu!! It was my #1 want on my list and I got him on the first day!!! Loving it there!!” 
 
 
 
 Sabrina Corgatelli with impala 
 
 Later the same day, she posted several pictures of her with the corpse of “an amazing old giraffe”, and wrote: “Such an amazing animal!! I couldn't be any happier!! My emotion after getting him was a feeling I will never forget!!!” 
 
 Other pictures showed Miss Corgatelli, who has pink and black hair and long, manicured nails and wears heavy make-up, skin-tight khaki and pink hunting attire and hoop earrings, celebrating the kill with hands clasped together as though praying. 
 
 Another picture showed her with a large, dead warthog with the caption: “What a fun hunt!!! Loving it here!!” and another showed her with a blue wildebeest and an impala which she described as “one of Africa’s icons”. 
 
 
 
 Sabrina Corgatelli with a warthog 
 
 Miss Corgatelli, a university accountant who also runs a clothing company called Racks and Ridges, also posted a photograph of her boyfriend, named only as “Aaron” with the body of a 13-foot crocodile. 
 
 He wrote on his own Facebook page that he had killed two lions in the past two weeks in South Africa, and admitted he had in 2002 killed a collared lion like Cecil in the same place that he had been killed. 
 
 Mr Neilson said that Dr Palmer’s actions were “100% acceptable” provided he was hunting with a legal permit in a legal area – an aspect of the case that has been hotly debated. 
 
 He said the issue of ethics should not come into it. “I do get seriously tired of the ‘ethical’ token thrown into the mix,” he wrote. “Who are you/I to determine another man's ethics? We have laws to determine what's right/wrong, ethics are your own to decide!!!” 
 
 
 
 Sabrina Corgatelli with a wildebeest 
 
 He condemned those who had attacked Dr Palmer, himself and his girlfriend Miss Corgatelli on social media, as “uneducated, misinformed, misguided, godless, narrow minded hypocrites”. 
 
 “I AM HUNTER! For that I make no excuses, no apologies, I back down to no one, and I hide from it not!” he wrote. “I'm armed at all times, and I'm ready - either step up or shut up!! My money, my time and my efforts go to Lion hunting/conservation, for that I am proud!” 
 
 The couple’s posts however prompted a firestorm of outrage from animal lovers. Tens of thousands of people posted on Miss Corgatelli’s profile branding her “deranged”, “heartless” and “the definition of disgusting”. 
 
 Her profile also attracted more than 7,000 “likes” however, suggesting some hunting sympathisers among those who viewed it, while Mr Neilson’s commentary was reposted hundreds of times by fellow hunting enthusiasts. 
 
 Mr Neilson’s Facebook page was later disabled. 
 
 Luis, a spokesman for Old Days hunting firm in South Africa, confirmed he had hosted Miss Corgatelli and Mr Neilson for a two-week trip but declined to comment further. 
 
 Zimbabwe has restricted hunting following the death of Cecil, who wore a GPS collar as part of an Oxford University study. The authorities have also arrested the professional hunter who accompanied Dr Palmer and called for the dentist’s extradition from Minnesota in the United States to face charges of financing an illegal hunt.
– There was the question of when Cheryl's birthday is. The dress that was either white and gold or blue and black. And now the Internet is going insane over a hidden panda, BuzzFeed reports. Illustrator Gergely Dudás, pen name Dudolf, shared an image on Facebook last Wednesday showing what appears to be a bunch of snowmen, along with the caption: "There's a panda amongst them! Can you find it?" Though some may spot the panda easily, many apparently have had trouble, with the more than 27,000 comments including ones like, "There is no panda but it was nice" and "Been looking for 15 mins still can't find it lol." The image has been shared nearly 153,000 times so far.