A MAN SEES A GOLD DIAMIND AND SILVER DOOR WHICH WILL HE OPEN FIRST RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

The gold key will open the lock.

The clue says A Golden Key Can Open Any Door. Decipher the message by taking the first letter of each word, then the second letter of each word, then the third letter and so on to construct the sentence. Did you answer this riddle correctly?
YES  NO  

His wife came to the door with a butcher knife because she thought her husband was coming home. She was planning to kill the husband. Did you answer this riddle correctly?
YES  NO  

Your door Did you answer this riddle correctly?
YES  NO  

I am a door Did you answer this riddle correctly?
YES  NO  

Because it was his duty! Did you answer this riddle correctly?
YES  NO  

A keyhole Did you answer this riddle correctly?
YES  NO  

She was throwing away all the W's... Did you answer this riddle correctly?
YES  NO  

Gold Did you answer this riddle correctly?
YES  NO  

The third equation has a term with a pair of whistles. The last line involves a single whistle.

Furthermore, the man in the second and third lines are wearing a whistle, but the man in the last line is not wearing a whistle. Presumably the value of the whistle should be accounted for to get the correct answer.

The pictures can be translated into the following equations:

shoes + shoes + shoes = 30
shoes + (man + whistle) + (man + whistle) = 20
(man + whistle) + 2(whistles) + 2(whistles) = 13
shoes + (man) x (whistle) = ?

From the first equation we can solve for the shoes value:

shoes + shoes + shoes = 30
3(shoes) = 30
shoes = 10

We can then solve the second equation for the (man + whistle) value:

shoes + (man + whistle) + (man + whistle) = 20
10 + 2(man + whistle) = 20
2(man + whistle) = 10
man + whistle = 5

Then we solve the third equation for the whistle:

(man + whistle) + 2(whistles) + 2(whistles) = 13
5 + 4(whistles) = 13
4(whistles) = 8
whistle = 2

We also need to solve for the value of the man:

man + whistle = 5
man + 2 = 5
man = 3

Now we can evaluate the final expression, remembering the order of operations that multiplication should be evaluated before addition:

shoes + (man) x (whistle) = ?

10 + 3 x 2
= 10 + 3 x 2
= 10 + 6
= 16 Did you answer this riddle correctly?
YES  NO  

Keyhole Did you answer this riddle correctly?
YES  NO  

You don't knock on your own hotel door and the man did. Did you answer this riddle correctly?
YES  NO  

A door. Did you answer this riddle correctly?
YES  NO  

A donkey, turkey and a monkey. Did you answer this riddle correctly?
YES  NO  

The man was guilty because he was watching the jury and not the door, because he knew she wouldnt be walking in. Did you answer this riddle correctly?
YES  NO  

A dentist. Did you answer this riddle correctly?
YES  NO