The phrase "a number of knocks" is correct and usable in written English.
It can be used to describe multiple instances of knocking, often in the context of someone knocking on a door or surface.
Example: "After a number of knocks, she finally decided to open the door."
Alternatives: "several knocks" or "multiple knocks".
I got knocked out against Argentina, one of a number of knocks I took last autumn, but then I kept being ready for the next game.
Even though, according to recent opinion polls, the police remain broadly trusted, their reputation has taken a number of knocks.The shooting of a Brazilian electrician, mistaken for an Islamist terrorist after the London bombings in 2005, occasioned the biggest.
I've not had a crash in the one I've got, but, when you are travelling down an icy track at 90mph, it suffers a number of knocks.
"Matt Scott took a shot to his thigh, Finn Russelll) was cramping and wasn't good at the end, we've got a number of knocks, Jim Hamilton came off with his back (injured), so I think at the start of the week we won't be doing a lot.
Actually, a number of knocks.
(It also includes a little shredding, a number of knock-knock jokes and Wang's impersonation of Yoda).
It's not uncommon to search the Google Play app store and find a number of knock-off or "fake" apps aiming to trick unsuspecting searchers into downloading them over the real thing �� especially when the app in question isn't yet available on Android.
The incident was widely reported in the media, and had a number of knock-on effects: 40 people became ill, and a product recall costing £20 million was initiated.
These had a number of knock-on effects relating to the nature of collaborative work, patterns of communication, the timeliness and availability of records (including paper) and the ability for hospital management to monitor organisational performance.
First, there are a number of knock-off solar panels available from discount sellers.
If a fiver is a stretch for lunch, you could always go around the corner to Grainger Market, where you will find a number of stalls knocking-out serviceable grub for two or three quid.
