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?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

When it's bad luck to meet a black cat?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

How many triangles can you count in the figure given?

Prove that the below maths equation is true.

8 + 8 = 91

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?