Can you convert the number zero(0) into a positive number using just one mathematical operator ?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

Find the hidden panda in the image below.

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

By moving just one matchstick, you need to make the below statement true. Can you do it?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Which country gets ill every time?

What does the below image rebus riddle means ?

I have no life, but I can die. What am I?

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?