Common errors in the use of Noun#3

1. My father always brings home two dozensdozen apples.
2. Unfortunately the new scissorsscissor I have purchased are blunt.
3. Without a doubt the sceneriesscenery in Kashmir are extremely lovely.
4. I am a vegeterian and thankfully I love fruitfruits and vegetables.
5. Though he is still in his twenties his hairshair has gone grey.
6. I can count three grey hairshair on my moustache.
7. This sturdy building has been made out of brickbricks and mortar.
8. He ran an amazing ten mileten miles race and bagged the trophy.
9. Politics,without any doubt, areis today a game for scoundrels.
10. Finally, what I have been eagerly waiting for - the summer vacation isvacations are quite near.
11. He badly needs two pairspair of boots.
12. He narrated the story superbly in great detaildetails.