Why Wine Glass Stem is so long?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

Which is the rope you never skip with?

What is full of holes but still holds water?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

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?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?