What question can you never answer yes to?

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

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

What Time Should the last watch show in the below figure?

What is the coolest letter in the alphabet?

What is the word or phrase below?
R | E | A | D

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?