A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

They are three errirs in this question. Can you find them?

Given that

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

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

John walks into the daily grocery shop and steals a $100 bill from the shop. An hour later John returns to the shop and buys some daily products for $40. John pays the owner the $100 bill and therefore the owner returns him $60.

How much money did the owner lose?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.