Can you find the hidden animal in the picture below?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

Replace the question mark with the number below given a simple math problem.

Who has married many women but was never married?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

What do you get if you add 2 to 100 four times?

Can you name some countries which do not have the alphabet 'A' in them?

Can you find the 09 errors in the picture below?