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?

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?

Can you count the number of blocks in the picture below?

Can you find a rabbit in the given picture?

How many times do a clock's hands overlap in a day ?

Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

Which alphabet letter is a question?