What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

How many letters are in the alphabet?

How many times in a given day, minutes and hour clock comes in a straight line ?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

You are a cab driver who pools passengers. You pick 3 people from a destination and drop 1 after an hour. 2 people climb aboard at the same time and you drop 3 at the next destination. After some time, you pick 2 passengers only to drop 1 after a short distance where 3 more passengers climb up the cab. You leave the rest of the passengers one by one to their destination and then come back home.

Can you tell the eye color of the cab driver?

In which direction should the missing arrow point?

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 ?

I am white when I am dirty, and black when I am clean. What am I?

Which is Odd One Out and why?

4377

3954

9862

8454

9831