Bilgiseli

This app, "50 Thousand Questions, 5 Categories," challenges you to answer 50,000 true/false questions across five subject areas. Each question has a 15-second time limit, and some may have multiple correct answers. The five categories are: Geography, Science & Technology, General Culture, English (including 8,000 words to memorize), and History. The questions include past exam questions, making this a great way to boost your general knowledge and vocabulary.