Can you count the number of matches in the picture below ?

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 man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Kareena is older than Katrina and younger than Karishma. Isabelle is younger than Bipasha and Karishma. Bipasha is older than Karishma. If Kareena and Isabelle are the same age, who's the youngest?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

Can you guess the name of the month by looking the below rebus ?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

With the help clues provided in the image, can you find the 5 digit key?