Match the Features of the Indian Constitution with their sources.
\[ \begin{array}{|c|l|c|l|} \hline \text{List-I} & & \text{List-II} & \\ \hline (a) & \text{Fundamental Rights} & (i) & \text{South Africa} \\ \hline (b) & \text{Directive Principles of State Policy} & (ii) & \text{U.S.A.} \\ \hline (c) & \text{Parliamentary Government} & (iii) & \text{Ireland} \\ \hline (d) & \text{Election of Rajya Sabha Members} & (iv) & \text{U.K.} \\ \hline \end{array} \]
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? 
Which of the following statements with regard to Karnataka Budget 2023 presented by CM Siddaramaiah is incorrect?
Oommen Chandy, who passed away on 18th July, 2023 was the Chief Minister of which State?
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?