Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

Can you find out the total number of triangles in the given figure?

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