If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

What is always in front of you but can’t be seen?

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

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

What is the riddle which can be asked all day with a different correct answer each time.

What runs around the whole yard without moving?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

Solve the rebus riddle in the picture below.