Math questions
There is a three-digit number. The second digit is four times as big as the third digit, while the first digit is three less than the second digit. What is the number?
141
How many bones are in an adult human body?
206
What do you call the force that pulls objects toward the center of the Earth?
Gravity
Which planet is known as the Red Planet?
Mars
What gas do plants absorb from the air?
Carbon dioxide (CO₂)
Who made the theory of relativity?
Albert Einstein