why number 8549176320 is one of a kind?

A California farmer owns a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store owner calls the farmer to see how much fruit is available for him to buy. The farmer knows the main trunk has 24 branches. Each branch has exactly 12 boughs and each bough has exactly 6 twigs. Since each twig bears one piece of fruit, how many plums will the farmer be able to deliver?

Which five letter word can be added at the end of below word to form a
valid word?

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Can you think of any three-dimensional shape that comprises of exactly two surfaces?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

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?

Can you place six X (crosses) in below board without making three in a row in any way ?

If 21x = 79x, what is the value of x?

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

It is always ahead of me yet I can never see it. What is it?