John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Replace the question mark with the correct number below.

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

Count the number of triangles in the picture below:

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Where do fish keep their money?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?