When monkey rotate the gear, which mark will be hit 1 or 2 ?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

What does it mean?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

If 1+9+8=1, what is 2+8+9?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

Solve the mathematical equation in the picture below.

What's a single-digit number with no value?