How can a man go eight days without sleep?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Can you fill the blank with the correct number?

6 30 870 756030 _____

I have branches, but no fruit, trunk or leaves. What am I?

Find the missing number in the series below

13 -21 34 -55 ? -144

Which number comes next in the number series?

2, 9, 30, 93, ?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?