{"count":5,"questions":[{"id":11,"category":"math","difficulty":"easy","question":"What is 12 squared?","answer":"144","choices":["144","124","169","132"]},{"id":24,"category":"history","difficulty":"easy","question":"In what year did World War II end?","answer":"1945","choices":["1918","1945","1944","1939"]},{"id":14,"category":"math","difficulty":"medium","question":"What is the sum of angles in a triangle?","answer":"180 degrees","choices":["180 degrees","360 degrees","270 degrees","90 degrees"]},{"id":16,"category":"math","difficulty":"hard","question":"What is Euler's identity?","answer":"e^(iπ) + 1 = 0","choices":["e^π = i","e^(iπ) + 1 = 0","i² = 1","π = e"]},{"id":21,"category":"science","difficulty":"medium","question":"What is the speed of light in a vacuum (km/s)?","answer":"299,792","choices":["299,792","199,792","300,000","150,000"]}]}