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?

What work can one never finish?

I look at you, you look at me I raise my right, you raise your left. What am I?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

I am an odd number. Take away a letter and I become even. What number am I?

Where do you go to learn how to make ice cream?

What is the next number in this matchsticks series riddle?

what does this below rebus represent identXQQQQQME

I ask Joseph to pick any 5 cards out of a deck with no Jokers.

He can inspect then shuffle the deck before picking any five cards. He picks out 5 cards then hands them to me (Jack can't see any of this). I look at the cards and I pick 1 card out and give it back to Joseph. I then arrange the other four cards in a special way, and give those 4 cards all face down, and in a neat pile, to Jack.

Jack looks at the 4 cards i gave him, and says out loud which card Joseph is holding (suit and number). How?

The solution uses pure logic, not sleight of hand. All Jack needs to know is the order of the cards and what is on their face, nothing more.

What is the word or phrase below?
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