Choose or find odd number pair - (1 - 0) , (3 - 8) , (6 - 35) , (7 - 50)

D. 7 - 50

Choose or find odd word - Henri Becquerel , Roentgen , Madam Curie , Einstein

D. EINSTEIN

Choose or find odd word - Sheep , Gazel , Idex , Shrew , Tapir

B. GAZEL

Choose or find odd pair of words - (Onomatology : Names) , (Nidology : Nests) , (Phycology : Algae) , (Concology : Shells)

D. CONCOLOGY : SHELLS

Choose or find odd word - Galileo , Copernicus , Columbus , Bhaskara , Aryabhatta

C. COLUMBUS