In how many ways can you take one number from each of the 3 columns so that together they add up to 20? Column 1: 10, 7, 5, 6, 2. Column 2: 8, 17, 6, 9, 11. Column 3: 1, 9, 7, 4, 8. Answer with a natural number.
The letters A to H equal the numbers 1 to 8, not in that order. B+D=3, A+F=8, C+G=15, D+H=7, B+E=6, C+F=10, B+E+G=14. What is the value of G? Answer with a natural number.
What number should replace the question mark? Each triangle has a top number, two bottom numbers and a number inside: top 6, bottom 9 and 13, inside 67; top 7, bottom 2 and 19, inside 33; top 8, bottom 7 and 4, inside 60; top 7, bottom 4 and 19, inside ? Answer with a natural number.
The letters A B C D E F G H are in alphabetical order. What letter is three to the right of the letter that is immediately to the left of the letter that comes midway between the letter immediately to the left of the letter H and the letter two places to the left of the letter C?
The first pair of figures is related in a certain way. Which option completes the second pair in the same way? Choose from the options labelled in the figure.
Eight numbers are placed around a circle, clockwise from the top: 2, 3, 4, 5, 6, 7, 8, 1, with each number directly opposite another (2-6, 3-7, 4-8, 5-1). What number is directly opposite the number that is two places clockwise from the number that is directly opposite the number that is three places anti-clockwise from the number four? Answer with a natural number.
The first pair of figures is related in a certain way. Which option completes the second pair in the same way? Choose from the options labelled in the figure.
Which pair of balls is the odd one out? A: 6 3/4 and 8 7/8. B: 4 1/2 and 11 1/8. C: 2 1/8 and 13 1/2. D: 6 7/8 and 8 3/4. E: 7 3/8 and 8 1/4. F: 5 1/2 and 10 3/8.
What number should replace the question mark? Box 1: top 11 and 9, bottom 17 and 7, centre 76. Box 2: top 13 and 11, bottom 17 and 11, centre 44. Box 3: top 27 and 31, bottom 14 and 8, centre ? Answer with a natural number.
Five murder suspects are being questioned. In their five statements, only three of them tell the truth. Who is the murderer? Arthur: "Derek is the murderer." Bill: "I am innocent." Charlie: "It wasn't Edward." Derek: "Arthur is lying." Edward: "Bill is telling the truth."
To which square below can a dot be added so that it then meets the same conditions as in the box above? Choose from the options labelled in the figure.