CT-1A scientist has two bucketsone holds 4 gallons and the other holds 5 gallonsas well as an unlimited water supply.

By using nothing but the bucket and water, how can you accurately measure 3 gallons of water?

CT-2Three people check into a hotel. They pay $30 to the manager and go to their room. The manager suddenly remembers that the room rate is $25 and gives $5 to the bellboy to return to the people. On the way to the room, the bellboy reasons that $5 would be difficult to share among three people so he pockets $2 and gives $1 to each person. Now each person paid $10 and got back $1. So they paid $9 each, totaling $27. The bellboy has $2, totaling $29. Where is the missing $1?"

CT -3 Happy birthday! How many birthdays does the average person have?

CT-4 How Did I Die? In a large office building, there is a woman dead in her locked office, "sitting" at her deck. Except for the desk, chair and contents on the desk, the office is empty and the air conditioner is running. On the desk there are a two pieces of blank paper, a pen and a recently sealed envelope.The office has no windows and the door is locked from the inside.No one has directly killed her.Most likely, how was she killed?