Look at the picture and find out which square is not linked with any of the other squares.

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Solve below rebus puzzle?

One evening there was a murder in the home of a married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

It is always ahead of me yet I can never see it. What is it?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

When we see 2 but call 10?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?