You need to move three matchsticks to form three squares. Can you do it?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

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

What has a ring but no finger?

What is harder to catch the faster you run?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

A fresher was sitting in an interview. The interviewer said, "This is the last question of your interview. Tell me the accurate position of the centre of this table where your resume is kept."

How can he answer this question? What will you have answered to such a question?