What does below chemistry rebus means?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

The answer I give is yes, but what I mean is no. What was the question?

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

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

Guess the hidden movie name?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

What is the last thing you take off before bed?

Prove that twice of ten is the same as twice of eleven.

What can go up a chimney down, but can’t go down a chimney up?