Find the missing number in the series: 5, 10, 20, 40, ?, 160.

B. 80

Teacher is to Classroom as Doctor is to ?

A. HOSPITAL

Strong, Sturdy, Robust

C. POWERFUL

Bird is to Fly as Fish is to ?

A. SWIM

A cyclist covers a distance of 120 km in 6 hours. What is the average speed of the cyclist in km/h?

B. 20 KM/H