1) You have a drawer of 10 blue socks and 10 red socks. Imagine you're in the dark, how many single socks do you have to take out to guarantee you have a matching pair?

2) There are three rooms:

Room A contains raging fires.

Room B contains Lions which haven't eaten for 3 years.

Room C contains murderers waiting for you.

Which room should you enter?

3) You have 6 glasses lined up, 1,2,3,4,5,6.

Glasses 1,2,3 are filled with orange juice. 4,5,6 are empty. By moving only ONE glass, how do you create a situation where the glasses are alternately filled with juice?

I'll post up some others if you like these, answers will follow