It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

How many times can you subtract the number 5 from 25?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

The more of this there is, the less you see. What is it?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Why do we preferably have round manhole covers and not square ones?

Count the number of triangles in the below picture?

What is the fastest way to double your money?