Three sisters—Anna, Bella, and Clara—are sitting in a line. Anna always tells the truth, Bella always lies, and Clara can say either. The person on the far left says, 'Bella is sitting next to me.' The person in the middle says, 'I am Clara.' The person on the far right says, 'Anna is on the far left.' Who is sitting in the middle?

Three travelers check into a hotel room that costs 30 dollars total. They each contribute 10 dollars. Later, the manager realizes there was a mistake and the room should only cost 25 dollars. He gives 5 dollars to the bellhop to return to the travelers. The dishonest bellhop pockets 2 dollars and gives 1 dollar back to each of the three travelers. Now, each traveler has paid 9 dollars (total 27 dollars), and the bellhop has 2 dollars. 27 plus 2 equals 29. Where is the missing dollar?

I fly at night, sleep upside down, and use echoes to find my way. What am I?

A line goes: bee, butterfly, bee, butterfly, bee. What comes next?

A clock tower takes 6 seconds to strike 4 o'clock (striking 4 times with equal intervals between strikes). How many seconds will it take to strike 8 o'clock?

In a drawer, there are 10 matching black socks, 10 matching white socks, and 10 matching red socks. The room is pitch black. What is the minimum number of socks you must pull out to guarantee you have at least one complete matching pair of any color?

In a tournament of 8 chess players where everyone plays everyone else exactly once, how many total matches are played?