Twice Odd

[Rudi]

There are two odds in each line.
To answer correctly, supply the reason why each of the two words is odd (in each line).

1.      Mambo      Sierra      Tango      Foxtrot
2.      Aqua      Hazel      Willow      Cherry
3.      Swede      Afgan      Maltese      Boxer
4.      Cat      Sword      Hamster      Dog
5.      Screwdriver      Hammer      Margarita      Gimlet
6.      Bacon      Lamb      Veal      Pope
7.      Christmas      Easter      Anzac Day      Java
8.      Major      Orbison      Lennon      Denver
9.      Derby      Roule      Dundee      Caerphilly
10.      Prince      Double      Queen      King

[HansV]

8.

Spoiler

(John) Major because he is not a pop musician, (Roy) Orbison because his first name is not John

9.

Spoiler

Roule because it is not a place in the UK, Dundee because it is not a cheese

10.

Spoiler

Prince because it is not the size of a bed; Double because it is not a royal title

[StuartR]

1

Spoiler

Mambo because it is not a letter in the phonetic alphabet
Sierra because it is not a dance

2

Spoiler

Aqua because it's not a tree
Willow because it's not a colour

[HansV]

1.

Spoiler

Mambo because it is not part of the spelling alphabet; Sierra because it is not a dance.

2.

Spoiler

Aqua because it is not a tree; Willow because it is not a colour.

3.

Spoiler

Swede because it is not a dog breed; Boxer because it is not a nationality.

4.

Spoiler

Sword because it is not an animal; hamster because it has 2 syllables.

[StuartR]

3

Spoiler

Swede because it's not a type of dog
Boxer because it's not a nationality

[StuartR]

5

Spoiler

Hammer isn't a drink
Margarita isn't a tool

[StuartR]

6

Spoiler

Veal isn't a poet
Pope isn't meat (unless one is a cannibal)

[StuartR]

7

Spoiler

Java isn't a public holiday
Anzac Day isn't an island

[Rudi]

All #'s answered correctly, except #4.
Though I cannot deny that the pets are only one syllable, I'd like to give time for anyone to mull this one over further for another answer.

[HansV]

I object to #5: there is a Hammer cocktail - see Hammer Cocktail recipe,

[HansV]

4.

Spoiler

Still sword because it is not a pet, and hamster because there is no hamster fish.

HamsterFish.jpg

[StuartR]

I object to #5: there is a Hammer cocktail - see Hammer Cocktail recipe,

If I had some 7-up, I could make one of those, but I don't much like fizzy drinks.

[Rudi]

Maybe the puzzle was created before the cocktail. I see it contains Peach Schnapps.... x1000 !!!

Apparently you went fishing and got the answer I was looking for.
Puzzle completed!