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?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

What has no start, end, or centre?

what does the below rebus means?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Why are televisions attracted to people?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?