I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Out of four images which one is the odd one out?

What four weights can be used to balance from 1 to 30 pounds?

What is black when you buy it, red when you use it, and gray when you throw it away?

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 ?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

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

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

Move four matchsticks to the below square to form three squares?

Different lights make me strange by changing me into different sizes. What am I?