A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

How many times can you subtract the number two from the number fifty?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

When it's bad luck to meet a black cat?

Out of four images which one is the odd one out?

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

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Why 1729 is a magic number? Answer Logically.