what does the below math rebus puzzle mean?

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?

Find the hidden tiger in the given optical illusion ?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

You can hear me, but you can't touch or see me.

What am I?

Find the missing number in the sequence below:

If six children and two dogs were under an umbrella, how come none of them got wet?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

There are three boxes. One is labeled "APPLES" another is labeled "ORANGES". The last one is labeled "APPLES AND ORANGES". You know that each is labeled incorrectly. You may ask me to pick one fruit from one box which you choose.

How can you label the boxes correctly?