Using Only Five 5's and any mathematical operator make sum as 37

What is the word or phrase?

Be active and find the killer in the picture Riddle below.

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

What number should come in place of the question mark below?

What is the Surname of Barbie Doll?

You can see three almost identical images below. Can you spot the odd one out from them?

A bomb exploded in a room full of married couples and no one died. How?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?