1. Who invented the bulb and the cinema machine?

Ans. Edison invented the bulb and the cinema machine.

2. Which instrument is used to measure the strength of an earthquake?

Ans. A seismograph is used to measure the strength of an earthquake.

3. What kind of creature does not have hands, feet, nose, mouth, etc.

Ans. Sponges do not have hands, feet, nose, and mouth.

4. What is the tenth planet of the solar system and when was it discovered?

Ans. The tenth planet in the solar system is Vulcan and was discovered in 1900.

5. Which is the planet that was discovered with the help of mathematics?

Ans. Neptune is a planet that was discovered with the help of mathematics.

6. What is the name of the planet around which a circle of gases is formed?

Ans. Saturn is a planet surrounded by a circle of gases.

7. Which is the brightest planet?

Ans. Venus shines brighter than any other planet. And it goes up and down like the moon.

8. If sunlight travels in a circle, how many revolutions will it complete around the earth in one second?

Ans. If light travels in a circle, it completes seven and one-half cycles around the earth in one second.

9. What percentage of the human brain is water?

Ans. The human brain is 90% water. The forbidden brain can also think.

10. What was the name of the inventor of cartoon movies?

Ans. The inventor of cartoons was Walt Disney.

11. Whose waves run straight in the waves of TV and radio?

Ans. The TV waves go straight.

12. What is the name of the waves that makes a picture on TV?

Ans. Rasters are waves that make a picture on TV.

13. What is the name of the most abundant gas in the sun?

Ans. The most common gas found in the sun is hydrogen gas.

14. What is the bird that can stay still in the air?

Ans. Shikra is a bird that can stay still in the air.