What is the fastest way to double your money?

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

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?

What four weights can be used to balance from 1 to 30 pounds?

The more you take me, the more you leave me behind.
Who Am I?

Can you count the number of triangles in the given figure?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?