Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

What word is represented by this rebus?

Why Wine Glass Stem is so long?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

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?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

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

If two's company, and three's a crowd, then whats four and five ?

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?

Solve the puzzle by telling what does below picture means.