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.

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

What jumps when it walks and sits when it stands?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

What can you catch but never throw?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Which letter of the alphabet has the most water?

What is more useful when it is broken?

Take away the whole and some still remain. What is it?