Not really. But the two Z's (like almost all double consonants) create a single Z sound.
Both are in the same syllable, so you would have to decide which one was superfluous.
the silent consonant is g
Many words have a silent consonant
There isn't a silent consonant in ask - all 3 letters are pronounced.
There is no silent consonant in the word "music".
yes :)
Lacquer has one silent consonant - q (Q)
No.
The word science has one silent consonant: the first c. Note that it also has one silent vowel: the second e.
Yes
no
Yes
The first 'w' is silent.