Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

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?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

Our product and our sum always give the same answer. Who are we?

Through your logical capabilities, can you make 7 an even?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.

There are 3 apples in the basket and you take away 2. How many apples do you have now?

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.