What Adam and Eve do not have but the rest of the people have?

Replace the question mark with the number below given a simple math problem.

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

A man dies of old age on his 25 birthday. How is this possible?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Solve the following series:
AZ, GT, MN, __, YB

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Solve the alphametic puzzle by replacing the alphabet with the number.

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