What does the below rebus riddle means?

why number 8549176320 is one of a kind?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Complete the following series. It.s very logical:

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

Who has married many women but was never married?

Why Aeroplane windows are round?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

Can you replace the question mark with the correct number in the below table sequence?

A new clothing store has a unique method of pricing items. A vest costs $20, a tie costs $15, a blouse costs $30, and underwear costs $45. How much would pants cost?