For a puzzle app, we need a total of 2000 puzzles in five categories (400 each app.) logical, analytical, brain teasers, riddles, aptitude/mathematical. You can search online and copy the puzzles in the xml format that I'd provided below. So you have to submit five files total of 2000 entries.
<quiz>
<id>0</id>
<title></title>
<question></question>
<answer></answer>
</quiz>
<quiz>
<id>1</id>
<title></title>
<question></question>
<answer></answer>
</quiz>
I am interested in your unique project and would like to take it up.
I am familiar with creating XML format files as I've created many "Rainmeter" desktop customization skins. I can provide you a glance of the skins I've created.
I have come to understand your requirement. It would be amazing to collect questions for your puzzle app. I hope I can help to make your app a success.