MATHS CHALLENGE:Age 5-7
Coloured shapes: What colour is each shape?
Red does not touch grey
Blue is between white and grey
Green is not a square
Blue is on the right of pink
MATHS CHALLENGE:Age 8-10
Ali, Ben and Luke are in the same class as Holly, Laura and Zoe.
2 boys and 2 girls can play ping-pong.
Ali said: "I will only play if Holly plays."
Holly said: "I won't play if Ben is playing."
Ben said: "I won't play if Luke or Laura plays."
Luke said: "I will only play if Zoe plays."
Zoe said: " I don't mind who I play with."
Which 2 boys and which 2 girls play ping-pong?
Brain teaser solutions (from page 24)
Ali, Luke, Holly and Zoe play ping-pong.
Since 2 boys can play and Ben won't play if Luke plays, the 2 boys must be Ali and Ben, or Ali and Luke. Ali will play only if Holly plays, but Holly won't play with Ben. So the 2 boys are Ali and Luke.
Luke will play only if Holly plays, so the 2 girls are Holly and Zoe.