Terms & Conditions
Starting with HEAD, change one letter at a time until you have the word TAIL.
Each change leaves the other letters in their original places and must result in a proper word.
What is the minimum number of steps required to achieve this change?
Hint: The first change takes HEAD to HEAR.
Answer: 5 steps.
HEAD HEAR HEIR HAIR HAIL TAIL
HEAD HEAL HELL HALL TALL TAIL
HEAD HEAL TEAL TELL TALL TAIL.
Two popular and common objects (in their time) carry out the same function, yet one of them has thousands of moving parts and the other has none at all. What are the two objects?
Hint: One is relatively modern, and one is ancient.
Answer: An hour glass and a sundial.
What is represented by this BrainBat?
E K O R T S
Hint: Say what you see.
Answer: Back stroke.
A customer at a 7-11 store selected four items to buy, and was told that the cost was 7.11. He was curious that the cost was the same as the store name, so he enquired as to how the figure was derived. The clerk said that he had simply multiplied the prices of the four individual items. The customer protested that the four prices should have been ADDED, not MULTIPLIED. The clerk said that that was OK with him, but, the result was still the same: exactly 7.11. What were the four prices?
Answer: 1.20, 1.25, 1.50, and 3.16.
Note: We're not sure that this puzzle can be solved without the aid of a computer.