If you say my name, I will no longer exist. What am I?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

What does the below image rebus riddle means ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

There is a circular car race track of 10km. There are two cars, Car A and Car B. And they are at the exact opposite end to each other. At Time T(0), Both cars move toward each other at a constant speed of 100 m/seconds. As we know both cars are at the same speed they will always be the exact opposite to each other.
Note, at the center, there is a bug which starts flying towards Car A at time T(0). When the bug reaches car B, it turns back and starts moving towards the car A. The speed of bug is 1m/second. After 5 hours all three stop moving.
What is the total distance covered by the bug?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Count the Triangle in the figure given below:

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

What can go up a chimney down, but can’t go down a chimney up?

What can you see in the middle of March and April that you can never see in any other month?