What does below chemistry rebus means?

What seven-letter word has hundreds of letters in it?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

Spot what is wrong here in below Picture?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

How many letters are in the alphabet?