Ordinary bills need to be passed with simple majority in both Houses of the Parliament before it is send to Indian President for his assent. Cases where simple majority is used: 1  To pass Ordinary/Money/Financial bills.  To pass Non-Confidence Motion/Adjournment Motion/Censure Motion/Confidence Motion.
American Express Credit Cards seem to sometimes have 16 digits, sometimes 15, i just counted them but I am tired and my eyes crossed.
In order to be a valid number, the 16 digits have to work within the Mod 10 algorithm. All Visa numbers start with a 4. MasterCard numbers start with a 5, Amex is 3, and then there are a few others, including Discover card, etc.