Where do you go to learn how to make ice cream?

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

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

What goes through cities and fields, but never moves?

What is the next number in the series?

15 29 56 108 208 ?

Count the squares in the matchstick puzzle below?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

I have branches, but no fruit, trunk or leaves. What am I?

Which letter of the alphabet has the most water?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?