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

What is the Surname of Barbie Doll?

What type of tree can I carry in my hand?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

What number should come in place of the question mark below?

What does below pictogram mean?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

Can you decipher the below rebus?

PBLUESAISNUERSES

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.