Section 2: Online quizzes and crossword puzzles

A short general quizz: Introduction to economics, from Economics Online

Great multiple choice questions in economics by Oxford University Press, including:
Chapter 01 - The Nature of Economics; Chapter 02 - Scarcity, Governments, and Economists; Chapter 03 - Supply and Demand, etc.

Various Economics Quizzes & Trivia

Some general crossword puzzles in economics
(For French-speakers, see more exercises on economic terminology here.)
1/ Pre-industrial society
2/ Classical economics and Marxism
3/ Microeconomics
4/ Macroeconomics
5/ European integration and Union
6/ Money and its functions
7/ Environmental economics