1. EASY

What comes next: 2, 4, 6, ...

 
2. EASY

What comes next: 25, 30, 35, ...

 
3. MEDIUM

What comes next: 5, 7, 9, ...

  1. 8
  2. 9
  3. 10
  4. 11
  5. 12
 
4. MEDIUM

What comes next: 5, 15, 25, ...

 
5. MEDIUM

Erin counts by 3s starting at the number 1. Which number will Erin not say?

  1. 4
  2. 10
  3. 3
  4. 13
  5. None of the above
 
6. MEDIUM

Eric counts by 5s, starting at 0. What will all his numbers end with? For example, 23 ends with 3, and 7 ends with 7.

  1. 5
  2. 0
  3. 10
  4. Both A and B
  5. None of the above
 
7. MEDIUM

Ezreal counts by 2 starting from the number 1. Which number will he skip?

  1. 3
  2. 5
  3. 7
  4. 8
  5. 9
 
8. HARD

Adam counts by 2s starting from the number 10. What will his fourth number be?

 
9. HARD

Hilda starts from a certain number and counts by 10s. She reaches 60 on her third number. What was Hilda's starting number?

 
10. HARD

I start with the number 12. I start counting by a certain quantity up until my sixth number, 22. What number did I count by?

  1. 1
  2. 2
  3. 4
  4. 5
  5. 10