Quiz: Classification

Which is different? Apple, Mango, Carrot, Banana

Odd one: Dog, Cat, Cow, Snake

Odd: 3, 5, 7, 9

Odd: Rose, Lotus, Marigold, Mango

Odd: 16, 25, 36, 50

Odd letter set: CAT, BAT, RAT, EAR

Odd: Iron, Copper, Wood, Silver

Odd: Kilometre, Metre, Litre, Millimetre

Odd: 121, 144, 169, 180

Odd: Rectangle, Square, Triangle, Circle