A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

What does the below image rebus riddle means ?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

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

How is a fly different from a mosquito?

Can you find the six hidden animals in the picture below?