Complete the following series. It.s very logical:

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

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

Replace the question mark with the correct number.

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

How many letters are in the alphabet?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

What is the probability of choosing the correct answer at random from the options below?

a) 1/4
b) 1/2
c) 1
d) 1/4