Choose or find odd number - 1532 , 8749 , 4268 , 5846 , 6137

C. 4268

Choose or find odd word - House , Cottage , School , Palace , Hut

C. SCHOOL

Choose or find odd pair of words - (Fish : Pisciculture) , (Birds : Horticulture) , (Bees : Apiculture) , (Silkworm : Sericulture)

B. BIRDS : HORTICULTURE

Choose or find odd word - Biscuits , Chocolate , Cake , Bread , Pastry

B. CHOCOLATE

Choose or find odd word - Granite , Lignite , Peat , Anthracite , Bituminous

A. GRANITE