One syllable.
44 sounds
seven sounds
No, the word "watch" does not have a silent "t." The "t" in "watch" is not pronounced, but the correct spelling of the word does not include a "t" at all. Instead, it consists of the letters "w," "a," "t," "c," and "h," with the "t" being part of the "w" and "a" sounds.
We only have 26 letters, but there are 44 speech sounds.
Three
There are five sounds in the word "indexation".
The word "begged" has five sounds.
There are three sounds in the word "can" (k - æ - n)
44 sounds
Two sounds
There are three sounds in the word "laugh" (/l/ /a/ /f/).
The word "stake" has four sounds: /s/ - /t/ - /ā/ - /k/.
The word "knew" has 3 sounds: /n/ - /uː/ - /w/.
The word "sock" has 3 sounds: /s/, /ɑ/, /k/.
seven sounds
The word "quick" has 4 sounds: /k/ - /w/ - /ɪ/ - /k/
The word "fresh" has five sounds: /f/ /r/ /e/ /sh/.