Which number is both even and prime?
Which weighs more?
What does Wi-Fi officially stand for?
A digital clock shows 3:15. What is the angle between the minute hand and the hour hand?
What causes day and night on Earth?
Emma entered a room with an ice cube on the floor. An hour later, the ice cube had disappeared, but the floor was wet. What most likely happened?
A basket contains 5 apples. You take away 2 apples. How many apples do you have?
Why do seat belts improve safety during a sudden stop?