Haha - agreed. Seinfeldisms/TV lines are not cliches, no matter how well known.. In that case, the quiz should include, "To the moon, Alice," "You look mar-vel-ous!" and "Lucy, you've got some 'splaining to do." But still fun, thanks!
According to Ngram viewer, "honor among thieves" appears in writing about 100 times more commonly than "loyalty". That probably just means that people who don't quite know the cliche accidentally say loyalty sometimes.
I'm sorry, but as far as I know being "worse for wear" is a well known idiom, particularly used for drunkenness, but could just mean being ill or below par. I'm not aware that "no worse for wear" is a thing. (UK English)
This is correct. The cliche is that there IS "honor among thieves". Went to Google nGram viewer to verify, and the cliche has always been that there IS honor among thieves. "No honor among thieves" is a recent corruption and is much less common. The term "honor among thieves" first appeared, according to nGram, around 1750, and "no honor" was only in the 1830s and extremely rarely. "Honor" was between 100 and 10 times more popular until the 1990s, and since then it's been about three or four times more popular.
"Learn it. know it, live it."
Very common saying here - it's from pretentious nightclubs that only let people in if they follow a dress code. Horrible places.