A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

why number 8549176320 is one of a kind?

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

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

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

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

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

A blonde put eyeliner on her head. Why?