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 can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Replace the 'X' with any mathematical symbol to make the expression equal to 111.

18 X 12 X 2 X 3 = 111

I always drive my customer away.

Who am I?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

What has lots of eyes, but can’t see?

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 ?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?