why number 8549176320 is one of a kind?

What can you hold in your right hand, but never in your left hand?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

What four weights can be used to balance from 1 to 30 pounds?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

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.

What does below Rebus say?

XLR8

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?