Odd Man Out

Except Sydney, all others are capitals of the respective countries.

In all other pairs, second denote a property of the first.

All others are parts of a house.

All except Circle are figures made up of straight lines.

All except Bear belong to the cat family.

In all other numbers, the first three digits are consecutive numerals.

In all other groups, the second, fourth and the third letters are respectively four, eight and one steps ahead of the first, second and fourth letters respectively.

All other groups consist of alternate letters, though not in order.

In all other pairs, second number is the cube of the first.

In all other pairs, the sum off the digits of the second numbers is twice the sum of the digits of the first number.