Which word does the below Plexor means ?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

How can one talk without saying a single word?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

There are forty elephants and they have forty-fore heads. How can this be possible?

Count the number of triangles in the picture below:

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?