Sure, 1+1 is easy, but try to figure out this math problem: Three dudes arrived at a hotel. They approached the concierge and asked for three rooms. The concierge gave them the 3 rooms at $10 per room. Each guy paid $10, $30 total, and went to sleep. Later the concierge remembered that the hotel had a special rate and he should have charged only $25 total for the three rooms. The next morning when the guests were checking out, the concierge explained the mistake and returned five dollar bills to the guys; each one of them took $1 and they left $2 as tip for the concierge. So, Genius, where’s the missing dollar???
$15.00