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?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

You can hear me, but you can't touch or see me.

What am I?

Name a key which is hardest to turn.

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

how come the second man dies?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h.

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

Decode the movie name from the below picture?