"Walked" has one syllable. An easy way to teach kids to check for syllables is to place your hand flat under your chin and say the word clearly. The number of times your hand moves down is the number of syllables in the word. This is usually very reliable, as long as the word is enunciated properly.
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The word sidewalk has two syllables. The syllables are side-walk.
The word 'answer' has 2 syllables. An-swer.
There are four syllables in the word "usually".
The word has three syllables.
The syllables in the word what is only 1 : "what".
The word apotex has three syllables. The syllables in the word are a-po-tex.
There are three syllables in the word taxation. The syllables of the word are tax-a-tion.
The word prophets has two syllables. The syllables of the word are pro-phets.
The word burnol has two syllables. The syllables in the word are bur-nol.
The word unwrap has two syllables. The syllables in the word are un-wrap.
The word Guiana has three syllables. The syllables in the word are Gui-a-na.
There are two syllables in the word tidbit. The syllables in the word are tid-bit.