Remove the tank cover and check the water level after the fill valve has shut off. It should be about one inch below the opening of the overflow tube. If it is significantly lower than that, there may not be enough water in the tank to fill the bowl after a flush. Correct this by adjusting the float.
The average child can do this during the second half of this year. Between 24-36 months, children are typically able to work simple insert puzzles (e.g., completes a three-piece simple puzzle where pieces are whole objects). Also, children can remove a part from a toy (e.g., a wheel) and replace it.
Some babies begin to make some vowel sounds (like ah-ah or ooh-ooh) at about 2 months. Your baby will talk to you with a variety of sounds, and also will also smile at you and wait for your response, and respond to your smiles with his or her own. Your baby may even mimic your facial expressions.