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

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

Which part of London exists in France as well ?

Can you count the number of matches in the picture below ?

What is the next number in this matchsticks series riddle?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

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