Which five letter word can be added at the end of below word to form a
valid word?

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How can a man go eight days without sleep?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

What is the end of everything?

What does this rebus photo means?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

Can you fill the blank with the correct number?

6 30 870 756030 _____

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)