What has 13 hearts but no other organs?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Katrina wants to go on a date and prefers her date to be tall, dark and handsome.

Of the preferred traits - tall, dark and handsome - no two of Shahrukh, Ajay, Salman and Akshay have the same number.
Only Shahrukh or Akshay is tall and fair.
Only Ajay or Salman is short and handsome.
Shahrukh and Salman are either both tall or short.
Ajay and Akshay are either both dark or both fair.
Who is Katrina's date?

Before Mount Everest was discovered, what was the highest mountain in the world?

Count the number of balls in picture below:

A man died, leaving $10,000,000 for his widow, 5 sons and 4 daughters. Each daughter received an equal amount, each son received twice as much as a daughter, and the widow received three times as much as a son.

How much did the widow receive?

Can you find out the number of the parking space in which the car is parked?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

What is the Surname of Barbie Doll?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?