Answer: B) Clock Explanation: What has Hands But cannot Clap is a Clock or a Watch. A Clock technically has 3 hands. 1 Hour Hand Which tells Hours 1 Minute Hand Which tells Minutes 1 Second Hand Which tells Seconds. But cannot clap with these hands.

Answer: C) Blood Explanation: The main function of the pulmonary alveoli is to perform the transfer and exchange of gases. Here in the given options, blood is only one which is not gas.   Hence, blood is not transferred by alveoli.

Answer: B) Option B Explanation: Man walked 6 km at 1.5 kmph, again he walked 8 km at speed of 2 kmph and 40 km at a speed of 8kmphtime taken indivisually: => 6/1.5 = 4 m=> 8/2 = 4 m=> 40/8 = 5 m   Average speed of man= total distance/ total time=> 54/13 = 4213 kmph