What is the Surname of Barbie Doll?

Can you find out who is the kidnapper in below Picture and why, Explain ?

In the image given, you can find several triangles. Can you count them all?

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.

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

The richest man in the city Mr Rechard is kidnapped. James Bond is appointed to the case. At the crime scene, a note is found written by Mr Richard. The note read:

"First of January, Fourth of October, Fifth of March, Third of June."

James Bond knew that somehow, the killer's name was hidden in the note. The following were the suspects:

Jack Richard, the son and the heir of property.
John Jacobson, the employee of Richard.
June Richard, the wife of Richard.

James Bond took only a few moments to deduce the killer's name. Can you tell who was the killer?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

What will you call your mother's brother's brother-in-law?

What is more useful when it is broken?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?