Which letter is positioned 15 places after 'A' in the alphabet?

B. P

If a person walks at a speed of 4 km/h, how long will it take to walk 12 km?

B. 3 HOURS

Which of the following words is formed by adding a suffix to the root word 'educate'?

A. EDUCATION

How many times does the letter 'E' occur in the series: A, B, C, D, E, F, E, G, E, H?

B. 3

Choose a word similar to the group: Calm, Peaceful, Tranquil.

C. SERENE