Choose or find odd number - 35 , 49 , 50 , 63 , 140

C. 50

Choose or find odd letter group - ALMZ , BTUY , CPQX , DEFY

D. DEFY

Choose or find odd word - Lake , Sea , River , Pool , Pond

C. RIVER

Choose or find odd word - Foggy , Transparent , Turbid , Cloudy

B. TRANSPARENT

Choose or find odd word - Flute , Guitar , Sitar , Violin , Veena

A. FLUTE