
1. 
EASY

What comes next: 10, 20, 30, 40, 50...

2. 
EASY

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

3. 
EASY

What comes next: 5, 10, 15, 20, 25...

4. 
MEDIUM

Manny is counting by 5's and starts on the number 65. What should his next two numbers be?

5. 
MEDIUM

John and Gobin each count to 100 starting from 0. John counts by 2's and Gobin counts by 5's. If they count at the same speed, who will reach 100 first?
 John
 Gobin
 Neither will reach 100
 They will reach 100 at the same time
 None of the above

6. 
MEDIUM

Viraj is counting by 10's. If he starts at 30 and counts to 70, how many numbers does he say?

7. 
HARD

Peter and Lea are having a counting race. Peter starts at 100 and counts down by 10 until 0. Lea starts at 0 and counts up by 10 until she reaches 100. If they both count at the same speed, who will win the race?
 Peter
 Lea
 They would tie
 Neither would finish the race
 None of the above

8. 
HARD

Vinit is counting by 5's. If he starts at 20 and counts to 50, how many numbers does he say?

9. 
HARD

When you count by 2's from 2 to 100, how many numbers will you count in total?

10. 
HARD

Perplexed Pat is trying to count by 2's starting from 2. He says the following: "2, 12, 22, 32....". What is wrong with his counting?

