Why is the Hole below a Lock?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

Which word does the below Plexor means ?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

What is the word or phrase?