What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

How many times in a given day, minutes and hour clock comes in a straight line ?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

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?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

To tease, King Akbar told his most clever advisor Birbal to give his daughter one thing that she can eat when hungry, drink if she feels thirsty and can burn if she feels cold. King Akbar was shocked when Birbal gave Akbar's daughter one such thing that satisfies all of the above.

What did Birbal give to Akbar's daughter?

If eleven plus two equals one, what does nine plus five equal?

Can you count the number of squares in the given picture?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.