Commonly misused English Idioms 1

1a. Bite more than you can chew.❌
1b. Bite off more than you can chew.✔
2a. The devil you know is better than the angel you don't know.❌
2b. Better the devil you know than the devil you don't.✔
3a. Half bread is better than none.❌
Half a loaf is better than no bread.✔
4a. An idle hand is the devil's workshop.❌
4b. The devil makes work for idle hands.✔
5a. Rub minds.❌
5b. Rub shoulders.✔
6. Last but not least, we often say, ON A PLATTER OF GOLD. This expression is an idiomatic expression, and that is not the correct way of saying it. Needless to say that IDIOMS are fixed expression.