Why do people go to bed?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?

Can you fill the blank with the correct number?

6 30 870 756030 _____

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

What Time Should the last watch show in the below figure?