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?

What word is pronounced the same if you take away four of its five letters?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

You can hear me, but you can't touch or see me.

What am I?

What is the end of everything?

Can you find a rabbit in the given picture?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

What seven-letter word has hundreds of letters in it?

What is the relationship between these matchstick pictures below?

You can see it everyday, But cannot touch it at will. What is it?