How can a man go eight days without sleep?

Can you find the six hidden animals in the picture below?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

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?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Find the number of squares in the below-given picture.

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

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