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?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Find the missing number in the image below.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Who is that with a neck and no head, two arms and no hands? What is it?

What makes this number unique: 8,549,176,320?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?