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?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

There are seven sisters in a house in a village where there is no electricity or any gadget.

Sister-1: Reading Novel
Sister-2: Cooking
Sister-3: Playing Chess
Sister-4: Playing Sudoku
Sister-5: Washing clothes
Sister-6: Gardening

what is Sister-7 doing ?

what does the below rebus means?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Can you write down eight eights so that they add up to one thousand?

If eleven plus two equals one, what does nine plus five equal?

Using Only Five 5's and any mathematical operator make sum as 37

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?