Great example of a general knowledge quiz!! The wide range of topics made it interesting and the short time frame resulted in a situation where if you knew the answer you could get it in time but if you were struggling you were going to miss it. Good challenge!
Those three words are indeed palindromes (which I figured out), but they are also nouns. If you want palindrome to be the only acceptable answer, then you should re-word the question as noun is an acceptable for the way it's currently written.
Um... they're also all English words? Can we accept that, too? They're also spoken at times. They are also all real words! Can we accept just "real" because I feel that it's an acceptable answer!
No, it is not. Pines are in the genus pinus; cedars are in the genus cedrus. They are both in the pinaceae family, but that is where the similarity ends.
A: They are both carbon-based life forms.
We can add "civic" to that list of palindromes.