What word is pronounced the same if you take away four of its five letters?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

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

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

Who is that with a neck and no head, two arms and no hands? What is it?

What can you see in the middle of March and April that you can never see in any other month?

What is the relationship between these matchstick pictures below?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

What occurs twice in a week, once in a year but never in a day?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?