Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

How can you make a TV, a bed, a dog, and a car liquid?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

During which month do people sleep the least?

Can you place six X (crosses) in below board without making three in a row in any way ?

The Puzzle: Here is a famous prize problem that Sam Loyd issued in 1882, offering $1000 as a prize for the best answer showing how to arrange the seven figures and the eight 'dots' .4.5.6.7.8.9.0. which would add up to 82

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

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