Call me Mr. Picky, but I believe that when the collective noun "number" is used
with "a" then it takes a plural verb, but when used with "the", it takes a singular
verb.
A number of candles are . . .
The number of candles is . . .
you people don't have a grammar police to settle this? tsk tsk. we Slovaks, do. In fact it is against the law to use bad grammar, you can be fined up to 100 EUR for that.
Seriously? That would make Slovaks even more authoritarian than the French. I always thought that's a tough standard to match when it comes to language.