Words with 'cob' at the start and 'a' at the end

Which word on this page ranks as the most common?
We can verify that 'cobra' is the 56547^th most common word.

How many letters are in the longest word on this page?
The biggest word is 6 characters, which is 'cobaea'.

What's the max number of words one can make using this combination of letters?
On this page of words that start with 'cob' and end with 'a', there are 5 brilliant entries that are available.

What is a weird word from all the word combos possible on this list?
'Cobaea' is certainly the most unusual word in our list of words that start with 'cob' and end with 'a'. 'Cobaea''s definition is "A genus of climbing plants, native of Mexico and South America. C. Scandens is a consrvatory climber with large bell-shaped flowers.", according to the dictionary.

In Scrabble, what is the highest possible score you can get from this list of words that start with 'cob' and end with 'a'?
For 12 points in Scrabble, it's possible to play 'cobbra'.