Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

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

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

Which is faster, Heat or Cold ? Explain.

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

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

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Complete the table series riddle by finding the number that can replace "??".