I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

I don't get anymore wetter, no matter how much rain falls on me.

Can you solve this picture maths equation?

I’m tall when I’m young, and I’m short when I’m old. What am I?

How many letters are in the alphabet?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

If you say my name, I will no longer exist. What am I?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

Give it food and it will live; give it water and it will die.