I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

Complete the table series riddle by finding the number that can replace "??".

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

What number do you get when you multiply all of the numbers on a telephone's number pad?