What kind of storm is always in a rush?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

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?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

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

Find the value of "?" in the ball picture Riddle below:

How many triangles are there on the puzzle below?

Find the missing number in the sequence below: