In details

Mathematical Challenges (page 3)


Filter by difficulty level
Very easy (8)
Easy (49)
Medium (96)
Difficult (31)
Very hard (9)
Displaying 193 challenges of all levels (page 3): Challenge 61
Ladder on the ship Challenge 62
Chicken Eggs Challenge 63
Octagenarian and his great-grandson Challenge 64
How much is $ 10.00 times $ 10.00? Challenge 65
How many men need to leave the room? Challenge 66
The Dog and the Hare Challenge 67
The Bottle and the Cork Challenge 68
Sum of Figures Challenge 69
Scale and almonds Challenge 70
How many ways? Challenge 71
The Hungry Moth and the 10 Books Challenge 72
Represent the numbers 2 through 9 Challenge 73
Number 6 with 3 equal digits Challenge 74
Two Parents and Two Children Challenge 75
Represent the number 100 Continues after advertising Challenge 76
Great-Grandfather's Age Challenge 77
The Two Watches Challenge 78
Cooking the Egg Challenge 79
The children of the couple Aguiar Challenge 80
5-digit palindromes Challenge 81
Surprise at the restaurant Challenge 82
The Farmer's Puzzle Challenge 83
Your Manoel Challenge Account 84
Grandpa's Grandsons Severino Challenge 85
Saint Anthony miracle worker Challenge 86
The Great Family Challenge 87
How old was Claudiomiro? Challenge 88
Forming the Number 100 Challenge 89
The Eight Eights Challenge 90
Wolf, Ram and Cabbage