Which country gets ill every time?

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?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

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

What am I?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

The cream is heavier than Milk. True or False?

Be active and find the killer in the picture Riddle below.

What does the below rebus puzzle mean?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?