When purchased together, a pair of binoculars and the case cost $100. If the binoculars cost $90 more than the case, how much does the case cost?
Riddle AnswerMath Riddles
Sister’s Age
When Tom was 2 years old his sister was half his age. Now, Tom is 100 years old. Then how old is his sister?
Riddle AnswerTable Height
Switching Problem
Here is a light switch. Note the order of the positions. If the light is now at medium and it is switched 3922 times what will be the position of the switch?
Cookie Problem
In a cookie jar, there are ten butter cookies and ten chocolate-chip cookies. Tom sneaks over to the cookie jar in the middle of the night and tries to figure out:
- How many cookies do I need to take out of the jar if I want to make sure to get at least two of each kind?
- How many cookies do I need to take out of the jar if I want to make sure to get at least two butter cookies?