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?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

Imagine you are in a room with no windows or doors. How will you get out?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

What building has the most stories?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

Which of the below owl is odd one out?