Can you start the fire using two pieces of wood?

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?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

Which tank will fill first?

What do you call a fish without an eye?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Find the number of squares in the below picture

A sundial has the fewest moving parts of any timepiece. Which has the most?

I shave every day, but my beard stays the same. What am I?

Spot what is wrong here in below Picture?