How can you make number one disappear by adding something to it?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

I have branches, but no fruit, trunk or leaves. What am I?

Can you find the dog hidden in a group of pandas?

Can you find out the remainder when 3^300 is divided by 5?

Two men play a dice game involving roll of two standard dice. Man X says that a 12 will be rolled first. Man Y says that two consecutive 7s will be rolled first. The men keep rolling until one of them wins.

What is the probability that X will win ?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?