Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Find the next number in the series.
1 10 24 43 67 ?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

Why is the Hole below a Lock?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

You need to arrange three 7 and mathematical symbols to form number 1?

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 ?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Can you find out which options fits best with the missing column?