a preschool quiz app for kids with Firebase-powered MCQs in GK, Math, Islamiyat, and English — built in Kotlin using RecyclerView, custom dialogs, and timers.

GUI-based Quiz Game developed using Python and Tkinter featuring multiple subjects, MCQ quizzes, score calculation, and performance grading.

An interactive quiz web app with multiple-choice questions and score tracking.

A RESTful MCQ quiz API with randomized question selection (Fisher-Yates), timed quizzes, automatic scoring, statistics, and a leaderboard. Built with Node.js, Express, and SQLite (better-sqlite3), featuring Swagger docs, hardened security (Helmet, CORS, rate limiting), and a zero-dependency test suite.