1. Start with the sequence of non-zero digits 123456789. Place plus or minus signs between them so that the result of thus described arithmetic operation will be 100.
Answer: We got one answer
12 + 3 - 4 + 5 + 67 + 8 + 9 = 100
and suggested there existed at least one more. I do not claim to have made an exhaustive search but there appear to be more than just two answers. One of this is
123 + 4 - 5 + 67 - 89 = 100
I am sure there it at least another one. Want to find it?
2. Name four days of the week that begin with the letter "t".
Answer: Tuesday, Thursday, Today and Tomorrow
3. What word has five letters but is pronounced as only one?
Answer: The word Queue.
4. I have 2 arms, but fingers none. I have 2 feet, but cannot run. I carry well, but found I carry best with my feet off the ground. What am I?
Answer: I am a wheelbarrow.
5. What is big and yellow and comes in the morning to brighten mom's day?
Answer: A schoolbus
6. You are in a room with 3 monkeys. One monkey has a banana, one has a stick and one has nothing. Who is the smartest primate?
Answer: You
7. I am part of the bird that is not in the sky. I swim in the ocean yet remain dry. What am I?
Answer: A bird's shadow.
8. What is half of 2 + 2?
Answer: 3. Work from left to right (half of 2)= 1 + 2 = 3.
9. Forward I am heavy, backward I am not. What am I?
Answer: The word "ton", which backward becomes "not".
10. What always runs but never walks, often murmurs, never talks, has a bed but never sleeps, has a mouth but never eats?
Answer: A River