11)What comes next: 5, 10, 20, 40, ?
12)If 5 machines make 5 items in 5 minutes, how long will 100 machines take to make 100 items?
13)What number is missing: 7, 14, 28, 56, ?
14)Which number is odd one out: 2, 3, 5, 9, 7
15)What has a neck but no head?
16)If you divide 30 by half and add 10, what do you get?
17)Which number completes the series: 4, 6, 9, 13, 18, ?
18)What goes up but never comes down?
19)If 2 is company and 3 is crowd, what are 4 and 5?
20)Which number replaces ?: 11, 13, 17, 19, ?, 29
Your Score: 0 / 0