I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

How many letters are in the alphabet?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

Can you solve this picture maths equation?

How is the moon similar to a dollar?