10+10 and 11+11 can give you the same answer.

Explain how?

How can you leave a room with two legs and return with six legs?

What word is represented by this rebus?

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?

What does this Rebus Picture mean?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Can you find the missing piece of the Porsche?