Classification (Odd One Out) Set 1

All except Tetanus are diseases which are transmitted by insects or mosquitoes.

Table, chair, and sofa are furniture items. A notebook is a stationery item.

All except Smut are forms of fungi

16, 25, and 36 are perfect squares: 4², 5², and 6² respectively. 48 is not a perfect square.

8, 27, and 64 are perfect cubes: 2³, 3³, and 4³. 100 is not a perfect cube.