Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

Why 1729 is a magic number? Answer Logically.

I look at you, you look at me I raise my right, you raise your left. What am I?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

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

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Take one out and scratch my head, I am now black but once was red. What am I?

What does this rebus means ?

PROG WORKRESS

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?