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?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

What occurs twice in a week, once in a year but never in a day?

A man is sitting in a bar when a rich man sits next to him. He turns to the rich man and says, “Did you know I know almost every song that has ever existed?”

The rich man laughs. The man then says, “I bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it. The rich man laughs again and says, “OK, how about my daughter’s name, Jamie Armstrong-Miller?” Minutes later, the man collects his cash and the rich man goes home cashless. What song did the man sing?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?