It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

Can you make a fire with just a single stick?

This was asked in an interview with Coa-Cola.

The interviewer has given me 100 marbles(50 white and 50 black) and two empty boxes.
He then told me that he will leave the room and i need to place all the marbles in two boxes.

And When he come back, he will draw a marble from any of the two box and if the marble is white I will be hired.

Also
* No box can be empty.
* All 100 marbles must be placed in one of the two boxes.

So what should I have done?

Using Only Five 5's and any mathematical operator make sum as 37

Find the value of "?" in the ball picture Riddle below:

Can you name some countries which do not have the alphabet 'A' in them?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Solve the counting riddle by identifying the number of triangles in the given picture.

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?