Use quiz:
[quiz math-quiz "Tính tổng phép toán sau: 12+16=?|28"]
or
[quiz capital-quiz "The capital of Vietnam?|Hanoi"]
Use quiz:
[quiz math-quiz "Tính tổng phép toán sau: 12+16=?|28"]
or
[quiz capital-quiz "The capital of Vietnam?|Hanoi"]