Replace the question mark with the correct number in the below-given picture?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?

I look at you, you look at me, I raise my right, you raise your left. What am I?

What do you get if you add 2 to 100 four times?

What does this simple rebus mean?

Replace the question mark with the correct number.

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

why number 8549176320 is one of a kind?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?