I am an odd number. Take away a letter and I become even. What number am I?
Seven
0, 1, 2, 3, 4, ... are a set of ...... numbers.
whole
A man dies of old age on his 25th birthday. How is this possible?
He was born on February, 29th.
There are several books on a bookshelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?
9 books.
..., -3, -2, -1, 0, 1, 2, 3, ... are a set of ..... .
Integers
What do you get when you divide 30 by 1/2 and add 10?
70
There are two ducks in front of two other ducks. There are two ducks behind two other ducks. There are two ducks beside two other ducks. How many ducks are there?
Four ducks (in a square).
The ages of a father and son add up to 66. The father's age is the son's age reversed. How old could they be (there are 3 possible solutions)?
42 and 24. 51 and 15. 60 and 6.
Two fathers and two sons go fishing. Each of them catches one fish. So why do they bring home only three fish?
Because the fishing group consists of a grandfather, his son, and his son's son.
If you buy a rooster for the purpose of laying eggs and you expect to get three eggs each day for breakfast, how many eggs will you have after three weeks?
Zero, roosters do not lay eggs
How can you add eight 8's to get the number 1,000? (only use addition)
The key to this math riddle is realizing that the one place must be zero. 888 + 88 + 8 + 8 + 8 = 1,000
Arrange four nines to make it equal to 100.
99+9/9 = 100.
What 3 positive numbers give the same result when multiplied together as when added together?
1,2,3
A grandfather, two fathers and two sons went to the movie theater together and everyone bought one movie ticket each. How many tickets did they buy in total?
3 (the grandfather is also a father and the father is also a son)
If you multiply this number by any other number, the answer will always be the same. What number is this?
Zero
A set of natural numbers start with number .....
1
I asked a girl how old she was. She said, "In 2 years I will be twice as old as I was 5 years ago." How old is she?
12
I am a three 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
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