How can a man go eight days without sleep?

What happened when the wheel was invented?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

The centre of the third figure is empty. What digit should fit inside?

Why is the longest human nose just 11 inches?

Rectify the following equality 101 - 102 = 1 by moving just one digit.