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?

People make me, save me, change me, raise me. What am I?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

Count the squares in the matchstick puzzle below?

Find the next number in the series.
1 10 24 43 67 ?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Replace the question mark with the correct number in the below-given picture?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?