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 has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

I’m tall when I’m young, and I’m short when I’m old. What am I?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Can you solve the below tricky visual equation?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

What does this Rebus Picture means ?