841: The number of times in a day the Hour-hand and the Minute-hand of a clock at right angles is

(a) 44
(b) 48
(c) 24
(d) 12
842: Bandipur is known for:

(a) Wildlife sanctuary

(b) Museum

(c) Waterfalls

(d) Nuclear plant
843: Pearls are formed inside:

(a) Squids

(b) Snails

(c) Oysters

(d) Mollusks
844: With reference to Indian history, who among the following is a future Buddha, yet to come to save the world?

(a) Avalokiteshvara
(b) Lokesvara
(c) Maitreya
(d) Padmapani
845: Which of the following can be said as the 'Theory of Darwin'

(a) Survival of the fittest and struggle for existence

(b) Weak and strong always maintain a fixed proportion

(c) Different species do not arise by genetic mutation

(d) None of these