Segregate the Questions based on topic

[warrenferns]

Is your feature request related to a problem? Please describe.
Currently all questions are mixed and if the user wishes to take a quiz of only a specific topic such as Science, Sports, Geography, etc he/she must be asked for the preference before the quiz starts so that only topic specific questions be asked to the user

Also a random option should be there which gives random topic questions

[alammoiz]

I would love to do this task, Please assign it to me @warrenferns
Please assign all the above 2 issues to me because it's related to this

[iwtga]

I would like to work on this!

[warrenferns]

@iwtga