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?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

A man was just doing his job when his suit was torn. Why did he die three minutes later?

What goes through cities and fields, but never moves?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

A river should be crossed by a father, a mother and their two sons and two daughters.
There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

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

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

Imagine you are in a room with no windows or doors. How will you get out?