A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

Using Only Five 5's and any mathematical operator make sum as 37

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

What is more useful when it is broken?

Why do we preferably have round manhole covers and not square ones?

What's a single-digit number with no value?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Find the next number in the series below

21 32 54 87 131 ?

When can we add 2 to 11 and get 1 as the correct answer?