Quiz

Here is a fun quiz I prepared recently:

Hint: The meaning of C is completely different in all the questions.

Answers

Update: The quiz has been cracked in the comments section. The answers are provided below. If you want to think about the problem before you see the solutions, this is a good time to pause and think about it. There are spoilers ahead.

Here are the answers with a brief description about each answer:

1. Dennis : C :: Bjarne : C++

   Dennis Ritchie created C and Bjarne Stroustrup created C++.

2. Sa : C :: Pa : G

   The Sanskrit names of musical notes in an octave are Sa, Re, Ga, Ma, Pa, Dha, Ni, Sa. The equivalent names in many English-speaking countries are C, D, E, F, G, A, B, C.

3. 6 : C :: 53 : I

   Carbon has symbol C and atomic number 6. Iodine has symbol I and atomic number 53.

4. 100 : C :: 500: D

   In Roman numerals, 100 is represented by C and 500 by D.

5. 50 : C :: 122 : F

6. 50 degrees Farenheit equals 122 degrees Centigrade (50 °C = 122 °F).

Extended Quiz

Update: A similar quiz by Prasanna mentioned in the comments section has been cracked.

Here is Prasanna's quiz along with the answers:

1. 195 : C :: 209 : J

   In EBCDIC, the character 'C' has the code 195 and the character 'J' has the code 209.

2. Bohai : C :: Oolong : T
   

   Bohai Sea and Oolong tea.