Why is it very easy to weigh a fish?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

what does this picture(rebus) riddle means ?

Who always enjoys poor health?

What has hands, but can’t clap?

What four weights can be used to balance from 1 to 30 pounds?

What number should come in place of the question mark below?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

How can one talk without saying a single word?

I can be cracked, made, told, and played. What am I?