Problems by Torbjørn Morland

Languages
Blackboard Numbers0.00108237865227%4.2Mediumen
Building Fences0.00370123128323%6.3Harden
Cat And Mouse0.003794316618%7.6Harden
Fencing Lessons0.01110561712520%6.8Harden
Friday the 13th0.00653880197051%2.0Easyen
I Hate The Number Nine0.00403549138339%3.3Mediumen
Johnny Applesack0.005598144645%3.5Mediumen
Johnny5 and the Exploding Oil Cans0.029282266328%7.1Harden
Lucky Numbers0.00113153961240%4.4Mediumen
Memory Game0.0046850416733%6.7Harden
Number Anagrams0.019504334811%8.9Harden
Palindrome Names0.0075146653336%4.2Mediumen
Picture Day0.0013471314736%6.1Harden
Pizza Crust0.001313317600245%1.9Easyen
Poetry Tower0.0011221727845%6.4Harden
Saving For Retirement0.00405743257145%2.0Easyen
Secret Santa Cycles0.0046367419729%6.7Harden
Simon Says0.00511014357232%2.9Mediumen
Square Peg in a Round Hole0.001253661118732%2.8Mediumen
Time Travelling Temperatures0.00674324168639%2.2Easyen
Travelling Delivery Person0.0111453198527%6.1Harden