The five questions everyone played that day, in the order they were asked, with the correct answers and why they are right.
If it rains, the street gets wet. The street is dry. What follows?
If rain always wets the street, a dry street rules rain out. From “if A then B” and “not B”, you may conclude “not A”; the reverse (a wet street proves rain) doesn't hold, because a hose can wet it too.
71% of players got this right
What comes next? 1, 4, 2, 5, 3, 6, …
Two sequences take turns: 1, 2, 3, … in the odd places and 4, 5, 6, … in the even places. The next term continues the first one: 4. When a sequence zigzags, check whether two simpler ones are interleaved.
79% of players got this right
What comes next? Z, X, U, Q, …
Stepping back through the alphabet by 2, 3, 4, then 5 letters: Z, X, U, Q, then L. When gaps grow by one each time, predict the next gap first, then apply it.
18% of players got this right
Draw both diagonals of a square. How many triangles can you find in total?
The diagonals make four small triangles, and pairs of neighbouring small triangles form four larger ones: 8. When counting shapes, count by size to avoid missing any.
21% of players got this right
Which red-cell blood type is known as the universal donor?
O-negative red cells carry no A, B or Rh(D) markers, so almost anyone's immune system accepts them. That makes them vital in emergencies when there's no time to test.
53% of players got this rightSource: en.wikipedia.org
