If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

People make me, save me, change me, raise me. What am I?

Akbar summoned Birbal out of anger.
He told him that he will have to face death.
He asked him to make a statement and if the statement is true he will be buried alive and if the statement is false, he will be thrown at lions.
After hearing Birbal’s statement, Akbar could do nothing but smile.
He gave him 5 gold bars and let him go.

What did Birbal say?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Can you name an animal whose killing cannot be performed without spilling your own blood?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

If it took eight men ten hours to build a wall, how long would it take four men to build it?