There are two syllables. Co-lours.
Some colours with two syllables are:PurpleYellowOrange
There are no usual colours that I can think of that have 4 syllables. However, there are a few with 4 syllables when they are descriptive of a colour. Some of these are Indian red, Amaranth pink and alloy orange. See the related link for a list of colours.
It has many different colours
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.
There are two syllables in "wistfully."
Happened has two syllables. The syllables are hap-pened.
There are two syllables.
2 syllables