Allow me too though :)
"What is the colour of a mirror?"
The mirror has no colour, it has the temporary colors of the objects in it's reflection.
"If you enjoy wasting time, is that time really wasted?"
Wasting time is relative.
If I go to NG it's a waste of time to my mom, but not to me, since I enjoy it :)
"If anything is possible, is it possible for anything to be impossible?"
Anything is possible is not a fact, it's an opinion, therefore, it doesn't have to be correct.
Therefore, the question failed in the core.
"If someone with multiple personalities threatens to kill himself, is it considered a hostage situation?"
Multiple personalities is an affliction, in absolute value you are still considered as one person.
"If you try to fail and succeed, then which have you done?"
You failed at what you wanted to fail at, but you succeeded at failing, however, if you'd try fail in (again) in the absolute meaning of failing, you can never succeed, since if you succeed, you haven't failed, it's a paradox.
"Why is 'abbreviated' such a long word?"
Stupid question.
"Why is a boxing ring square?"
Because you need to know your history.
"Why is it that rain drops but snow falls?"
Agreement on language.
"Why is it that when you're driving and looking for an address, you turn down the volume on the radio?"
Dumb question.
"Why is the third hand on the watch called second hand?"
It depends on what you call second or third.
"Why is the time of day with the slowest traffic called rush hour?"
Because all people rush to their work, durr hurr.
"Why is the word dictionary in the dictionary?"
It's a word.
"Why isn't there mouse-flavoured cat food?"
Go make it!
"Why do you need a driver's license to buy alcohol when you can't drink and drive?"
ID.
