What does this rebus riddle means ?

Which letter of the alphabet has the most water?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Which five letter word can be added at the end of below word to form a
valid word?

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A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

What does below Rebus say?

XLR8

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

What does this below rebus puzzle mean?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

Using Only Five 5's and any mathematical operator make sum as 37