Prove that the below maths equation is true.

8 + 8 = 91

There are five men, let's say Tarun Harish Lavesh, Manoj, and Manish. All of them have a dot mark on their forehead. They can't see the dots on their forehead but can see the ones on others. The owner of WHITE Dot is an honest person and will never lie, while the owner of BLACK Dot always tells the lie.

This is the statement from Tarun Harish Lavesh and Manish:
Tarun: 'I see 3 whites and 1 black'
Harish: 'I see 4 black'
Lavesh: 'I see 3 black and 1 white'
Manish: 'I see 4 white'

What colour is the dot on each of Tarun Harish Lavesh, Manoj, and Manish's forehead?

Why Aeroplane windows are round?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

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

S T O R M +
S O L E S
=========
T O W E L
=========

The more it dries, the wetter it becomes. Can you tell what it is?

What breaks yet never falls, and what falls yet never breaks?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

I am white when I am dirty, and black when I am clean. What am I?