Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What goes up but never comes down?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

You walk into an old horror house. It has no power or plumbing. Once inside, you see three doors. Each door has a number on it. Behind each door is a way for you to die. Behind door number one, you die by getting eaten by a lion. Behind door number two, you die by getting murdered. Behind door number three, you die by an electric chair. You can’t turn back, so you have to go through a door. Which door do you go through?

What am I?

What word does this rebus represent?

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