Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

What has one eye, but can’t see?

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.

Can you divide the below-given shape into four equal and identical pieces?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

You can hear me, but you can't touch or see me.

What am I?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

what does this picture(rebus) riddle means ?