What has a ring but no finger?

Who is that with a neck and no head, two arms and no hands? What is it?

Can you divide the below-given shape into four equal and identical pieces?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

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.

Which tank will fill first?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

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