Option (a) having correct group because all are juicy fruits.

Only option (a) is correct because all are birds in that group.

Only option (d) is correct because all are the units, which are related to Science.

All except 'Reading' are related to motion.

All except 'Hammer' are used for cutting.

All except 'Calculator' need electricty' to function.

All others are currencies, while 'Shora' is the Parliament os Afganistan.

All the other terms are used to denote the 'Complex' nature of something.

All are music intruments except flute. All have string to play the music but flute does not have.

All others are units to measure distance.