Choose or find odd word - Green , Violet , Red , Yellow

B. VIOLET

Choose or find odd word - Month , Year , Fortnight , Season , Week

D. SEASON

Choose or find odd word - Radium , Thorium , Sodium , Polonium , Uranium

C. SODIUM

Choose or find odd word - Nanak , Christ , Buddha , Gandhi , Mahavira

D. GANDHI

Choose or find odd word - Anger , Grief , Humorous , Kindness , Joy

C. HUMOROUS