Maybe because they are not stupid, but require thinking and logic?
<span class='standouttext'>Spoiler : </span><span class='spoiler'>Endurance: take imp first through the rift - back, take chest, go through the rift - now take imp again with you - leave him in starting room - take golem and go throught rift - imp is the last now.
Knowledge => you need to know the answers by reading the Code of Behaviour - the room with all those runes, representing Raanaar numbers.(3 tests - 13 hours - 5 prayers - 16 rules.
13 is tricky => this rune has collapsed, so you take a number not shown on the display.</span>
Please highligtht to read.