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 man was telling some of his war stories to his grandchildren.
"When the World War I was on the verge of end, I was awarded for my bravery for I had saved a group of my men." He coughed and then added, "When we were fighting in northern France, an enemy soldier threw a grenade at us. Before it could explode, I picked it up and threw it away. For my act of bravery, right before the war ended, A General gave me a sword engraved with the words "Awarded for Display of Bravery and Heroism in World War 1"."

Hearing this, one of the grandson spoke up. "Grandpa, this is not a true story. It can"t be true!"

The truth is that it was not. How did the grand children know it?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

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

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

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

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

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?