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 sundial has the fewest moving parts of any timepiece. Which has the most?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

These types of puzzles are known as charades. What you have to do is find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be office.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

What does this rebus riddle means ?

Which city is three-fifths chick two third cat and 50% goat?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?