There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

What is the next shape from answers A, B, C, and D figure?

When we see 2 but call 10?

What goes up but never comes down?

What does it mean?

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

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Can you find out the total number of triangles in the given figure?