What is full of holes but still holds water?

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

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

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

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

In the picture given below, can you find out which digit will take place of the question mark?

A man died and leaves Rs.10,000 in his will. There are 6 beneficiaries- his 3 sons and their wives. The 3 wives receive Rs.3960 of which Priyanka gets Rs.100 more than Tanu and Neha gets Rs.100 more than Priyanka.
Pramod gets twice as much as his wife, Tushar gets the same as his wife, and Prashant gets 50% more than his wife.

Who is married to whom?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

What does this mathematical rebus means ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?