The word mulled has one syllable. To determine how many syllables a word has, say the word aloud and count how many "parts" is has. For example, when you say the word syllable, it is broken up into three parts - syll-a-ble.
Mulled over basically means to think it over : I've mulled it over and yes you may go.
George preferred mulled wine over cider.
Mulled wine is wine heated with spices and it is consumed hot or warm.
Mulled wine.
Pulled and mulled
Glogg is a Scandinavian mulled wine
Mulled wine
There are 3 syllables in symphony:sym/pho/ny
there are 2 syllables in stomach. To see why, search 'How many syllables in attack?'
4 syllables am- phi- bi- an
Awake has two syllables. The syllables are a-wake.
There are 14 syllables.