What goes through cities and fields, but never moves?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Count the number of triangles in the picture below:

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

When we see 2 but call 10?

What does it mean?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Can you place three balls such that the equation shown in the picture holds true?

What word is pronounced the same if you take away four of its five letters?