Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

What does the below rebus puzzle mean?

Can you start the fire using two pieces of wood?

When does a USA Potato change its nationality?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

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?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

What is the fastest way to double your money?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.