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

The pound is not a finish.

We are sharing a few instructions below, which you have to use in any suitable order to modify the above sentence such that the end sentence is a scientific fact.

- Eliminate a letter and supplement another in its place.
- Take away one word.
- Remove one letter from one word.
- Get rid of two letters from one word.
- Swap a word with its antonym.

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

Complete the table series riddle by finding the number that can replace "??".

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Can you count the number of squares in the given picture?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?