What does below chemistry rebus means?

Why is the longest human nose just 11 inches?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Spot the cat in the picture below

I shave every day, but my beard stays the same. What am I?

There is a circular car race track of 10km. There are two cars, Car A and Car B. And they are at the exact opposite end to each other. At Time T(0), Both cars move toward each other at a constant speed of 100 m/seconds. As we know both cars are at the same speed they will always be the exact opposite to each other.
Note, at the center, there is a bug which starts flying towards Car A at time T(0). When the bug reaches car B, it turns back and starts moving towards the car A. The speed of bug is 1m/second. After 5 hours all three stop moving.
What is the total distance covered by the bug?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?