Choose or find odd letter group - EDCBA , PONML , UTSRQ , YXWVZ , KJIHG

D. YXWVZ

Choose or find odd word - December , February , March , July , May

B. FEBRUARY

Choose or find odd word - Ant , Bee , Moth , Midge , Spider

E. SPIDER

Choose or find odd word - Rival , Spouse , Partner , Colleague , Companion

A. RIVAL

Choose or find odd word - Viscometer , Anemometer , Spectroscope , Pyknometer

B. ANEMOMETER