Brain Teasers Deutsch English Español Français Nederlands Português SurveyMonkey Privacy Notice Question Title * 1. About how many ping pong balls do you think can fit into a Boeing 747? 23,000,000 4,300,000 100,000,000 130,000 Question Title * 2. What is the sum of all the numbers between 1 and 100? 5,050 15,050 10,050 1,050 Question Title * 3. About how many times heavier than a mouse is an elephant? 1,500 times heavier 70,500 times heavier 150,000 times heavier 550,000 times heavier Question Title * 4. How many times a day do a clock’s hands overlap? 12 48 24 22 Score Quiz