Here is a fun quiz I prepared recently:

Dennis : C :: Bjarne : ? Sa : C :: Pa : ? 6 : C :: 53 : ? 100 : C :: 500 : ? 50 : C :: 122 : ?

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

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:

Dennis : C :: Bjarne : C++ Dennis Ritchie created C and Bjarne Stroustrup created C++. 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. 6 : C :: 53 : I Carbon has symbol C and atomic number 6. Iodine has symbol I and atomic number 53. 100 : C :: 500: D In Roman numerals, 100 is represented by C and 500 by D. 50 : C :: 122 : F 50 degrees Farenheit equals 122 degrees Centigrade (50 °C = 122 °F).

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

Here is Prasanna's quiz along with the answers: