Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

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

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

What is the below Rebus indicate?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

What question can you never answer yes to?

What brings you down but never up?