Decode this picture on T-Shirt and tell what it says ?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

I know a nine-letter word having only one vowel.
Do you ?

What happened when the wheel was invented?

How many triangles are there on the puzzle below?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

John was piloting a plane behind a car but was never able to overtake it. Why?

Spot what is wrong here in below Picture?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?