There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

If eleven plus two equals one, what does nine plus five equal?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Can you count the number of triangles in the given picture?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

How can you make a TV, a bed, a dog, and a car liquid?

Can you count the number of triangles inside a triangle?

Can you find out who is the kidnapper in below Picture and why, Explain ?