Which of the following plays is not written by Dr. Chandrashekhara Kambara?
Recently, India has donated 1 million to the United Nations to support promotion of which of the following Indian languages?
Which of the following pairs is/are correctly matched? 
A sum of Rs. 800 amounts to Rs. 920 in 3 years at simple interest. What would be the amount, if the interest rate is increased by 3%?
In what ratio must water be mixed with milk to gain 20% by selling the mixture at cost price?