Sure, here are 20 quiz questions suitable for Class 1 students along with their answers:

1. **Question:** What is 2 + 3?

 - **Answer:** 5

2. **Question:** How many sides does a square have?

 - **Answer:** 4

3. **Question:** What color is a banana?

 - **Answer:** Yellow

4. **Question:** Which animal says "meow"?

 - **Answer:** Cat

5. **Question:** What shape is a circle?

 - **Answer:** Round

6. **Question:** How many legs does a dog have?

 - **Answer:** 4

7. **Question:** What comes after the number 5?

 - **Answer:** 6

8. **Question:** Which fruit is red and round?

 - **Answer:** Apple

9. **Question:** How many days are there in a week?

 - **Answer:** 7

10. **Question:** What do we use to write on paper?

 - **Answer:** Pencil

11. **Question:** Which animal is known for swinging on trees?

 - **Answer:** Monkey

12. **Question:** What shape is a traffic signal?

 - **Answer:** Circle

13. **Question:** Which bird can swim but cannot fly?

 - **Answer:** Penguin

14. **Question:** How many colors are there in a rainbow?

 - **Answer:** 7

15. **Question:** Which season comes after summer?

 - **Answer:** Autumn/Fall

16. **Question:** What do we use to eat soup?

 - **Answer:** Spoon

17. **Question:** Which fruit is green and crunchy?

 - **Answer:** Apple

18. **Question:** What do we wear on our feet?

 - **Answer:** Shoes

19. **Question:** Which animal has a long trunk?

 - **Answer:** Elephant

20. **Question:** What is 10 minus 5?

 - **Answer:** 5

Feel free to use these questions in a quiz format with your Class 1 students. You can adjust the difficulty level or topics based on their learning level and interests. Encourage participation and make it a fun learning experience for them!