1) Go/Sell Like Hot Cakes-to be bought quickly and in large numbers-
The new game is apparently selling like hot cakes.
2) Hear On The Grapevine-to hear or learn of something through an informal means of communication, especially gossip-
I heard on the grapevine that Stacy and Mark are getting a divorce.
3) Can't Judge A Book By Its Cover-outward appearance cannot be an indicator of someone or something's value or worth-
The hotel looked attractive from outside, but the rooms were damp and not well maintained. You can't judge a book by its cover!
4) Have The Ball In One's Court-used to convey it is time for someone to deal with a problem or make a decision, because other people have already done as much as they can-
I have helped him in every way I can, the ball is in his court now.
5) Cost An Arm And A Leg-be extremely expensive-
The new phone had cost him an arm and a leg.
6) Apple Of One's Eye-the person who someone loves most and is very proud of-
His youngest daughter was the apple of his eye.
7) Mean Business-to be very serious and determined-
The border is sealed by troops who mean business.
8) Golden Handshake-a big sum of money given to a person when he/she leaves a company or retires-
The management of the company wanted to decrease their workforce so they offered a golden handshake to their aged employees.
9) Taste Of Your Own Medicine-the same unpleasant experience or treatment that one has given to others-
This team likes to play rough, so let's go out there and give them a taste of their own medicine!
10) Leave High And Dry-to leave one in a situation that they have little chance of escaping or improving-
The departure of several key employees has left the business high and dry.
11) Shot In The Dark-an attempt that is not expected to succeed or has very little chance of working-
Well, this is just a shot in the dark, but I'm going to say that the answer to the question is 52.
12) Hold Your Cards Close To Your Chest-to keep your intended actions secret-
You never quite know what Barry's going to do next - he keeps his cards very close to his chest.
13) Nitty-Gritty-the most basic, important aspects or practical details of a subject or situation-
Instead of starting with the nitty-gritty, the teacher introduced the topic with a live demonstration.
14) Chink In Armour-a fault in someone's character or an argument that may cause problems for them-
A single chink in our armour at the negotiating table means we could lose out badly.
15) Pet Peeve-something that a particular person finds especially annoying-
One of my biggest pet peeves is poor customer service.
16) Out On A Limb-in or into a position where one is not joined or supported by anyone else-
I wouldn't go out on a limb like this if I didn't have the data to justify it.
17) Muddy The Waters-to make a situation more confused and less easy to understand or deal with-
The lawyer was trying to muddy the waters in order to make his client look less guilty.
18) Walk On Eggshells-to try very hard not to upset someone or something-
When my mother is staying at our house, I feel like I am walking on eggshells.
19) In The Nick Of Time-at the last possible moment-
We got there just in the nick of time.
20) High Horse-an attitude of moral superiority-
My sister needs to get off her high horse and stop lecturing me because I know she was a troublemaker as a teenager!