"A friendly cartoon robot with a retro monitor head, large expressive eyes

"A friendly cartoon robot with a retro monitor head, large expressive eyes, and a cheerful smile is sitting at a desk. The robot is holding a pencil in one hand, with a keyboard in front of it and a tablet on the desk. The background is a vibrant gradient from yellow to blue, filled with lots of alphabets, numbers, codes, riddles as elements. Above the robot, the word 'QUIZ' is displayed in large, glowing letters. The overall atmosphere is playful and educational, with a mix of warm and cool colors of green."