Two prisoners Jack and Jill are locked in a cell.
There is open window approx 40 feet above the ground of the cell.
They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.
After digging for more than 20 days, Jill comes with the different plan and they escaped.

what was the plan ?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

A man dies of old age on his 25 birthday. How is this possible?

Which English verb becomes past tense just by rearranging the letters?

What can jump higher than a building?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

What happened when the wheel was invented?

Identify the 10 differences between the two given pictures.