Yes. Check the first few entries for the letter Q in a dictionary.
None. There is no word with double Q (consecutive). However, there are words that have two (2) Q such as: equivoque. quinquennia.
No.
yes
W: word, witch, crow Q: quiche
I don't believe there are any words that have q in them in the Japanese language. Same as with c, x, v, l, w.
Quartz
Quaternary.
No, there are no words that begin with the letter "q" in the novel "Lord of the Flies" by William Golding.
There isn't any.
yes
no, there is not
Quite, Quiet, Quit.