When is 'World Sanskrit Day' celebrated every year?

Who has been named as the new Chairman of the Board of IDBI Intech?

If ABC is an equilateral triangle and P, Q, R respectively denote the middle points of AB, BC, CA, then 

Recently, who is a person of Indian origin elected President of Suriname?

In the following questions, in the following passages some of words have been left out. Read the passage carefully and choose the correct answer to each question out of the four alternatives and fill in the blanks.

Tennis is a game that gives one plenty of exercise; It develops ___(21)__ of eye and limb and ___(22)___the brain too into___(23)___. A few sets of tennis keep one physically and ___(24)___fit. But for the indoors, chess is the queen of games. People say chess is a __(25)__game because only two can play.

Fill in the blank at (23).