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

A blonde put eyeliner on her head. Why?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

What does this rebus puzzle mean?

Find the next number in the sequence

5 12 24 36 ?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

The more you take me, the more you leave me behind.
Who Am I?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

O_er_t_o_

Complete the missing letters of the given word.