Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

Find the next number in the sequence

1, 2, 6, 21, 88, __?

What runs around the whole yard without moving?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

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?

Using exactly three matchsticks, can you divide the area into two equal parts?

How is a fly different from a mosquito?

A bomb exploded in a room full of married couples and no one died. How?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??