You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

Can you find out the number that should replace the question mark with a valid reason?

How many letters are in the alphabet?

What question can you never answer yes to?

The more of this there is, the less you see. What is it?

Move four matchsticks to the below square to form three squares?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?