Password riddle. What is it?

Question

A man visited a club but he did not have the password to go in, so he waited outside the club to see what happens. Mr. "A" came to the club walked to the door of the club and the man inside the club shouted "twelve!" and Mr. "A" replied "six!" and he was allowed in.
Then Mr. "B" came to the club and walked to the door and the man inside the club shouted "six!" and Mr. "B" replied "three!" and was allowed in. Then the man, thinking he had heard enough adjusted himself walked to the door and the man inside the club shouted "four!" and the man answered "two!". He was not allowed in. Why was he not allowed in and what should he have said instead of two and WHY?

What number should he have said?

Answer 1

four is the correct answer...it is the number of characters in the original word

Answer 2

He should have said "four". The answer is the number of characters in whatever word the man in the club says.

Answer 3

answer: 4
since the word FOUR has 4 alphabets.
Six has 3
Twelve has 6

Answer 4

he was suppose to count the letters like twelve have 6 letters and six have 3 letters and four have 4 letters so the answer is 4

Answer 5

Maybe it was what the person before him said divided by two, rather than what the man inside shouts. So therefore, he should've said "one and a half".

Answer 6

4 because half of 8 is 4

Answer 7

He should have said three since the numbers were decreasing by halfs.

Answer 8

Half the number

Answer 9

Three

the person has to shout the PREVIOUS patron's RESPONSE number which would have been THREE and the response would have been 1and half.

Answer 10

4?