You Need To Answer It Really Fast
Some months have 30 days, some have 31.
How many have 28?
Answer of the Puzzle (How many have 28?) is : 12
How : All months from January to December have 28 days. They may have more days but at-least they all have 28 days.
If you can solve any 3 of these 5 puzzles, you have got a great IQ