People put me on the table and cut me but do not eat me. What am I?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Next Number in the Series,

5, 16, 49, 104, ?

Can you find the mistake in the below statement?

What kind of band never plays music?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?