Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

What's the next in the series?

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

How can a man go eight days without sleep?

Find The Odd One Out

1. FLOW
2. SNIP
3. TRAP
4. DRAW
5. BACK

who is silent in the parliament?

What can you see in the middle of March and April that you can never see in any other month?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Move three sticks of the spiral below to form a square.

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?