Level 1
I am a number. Multiply me by 4, then subtract 6, and you get 18. What number am I?
6
I am a two-digit number. My tens digit is three times my ones digit. If you reverse my digits, the number is 36 less than me. What number am I?
93
I am a 3-digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit. What number am I?
194
When I was 2, my brother was half my age. I am now 40. How old is my brother?
39
I am a number. Divide me by 2 and add 10, you get 20. What number am I?
20
There are 5 oranges and you take away 3. How many do you have?
3
A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there?
4 sisters and 3 brothers
A number leaves a remainder of 1 when divided by 2, 3, and 4. What is the smallest such number?
13
A man is 4 times as old as his son. In 20 years, he will be only twice as old as his son. What is his current age?
Father: 40 years, Son: 10 years
A student read 2 pages of a book per minute. If the book has 120 pages, how long will it take to read half the book?
30 minutes