Hmmm...
I’m an odd number. But if you take away a letter from my name, I will become even. What number am I?
Seven
Which statement is correct: 12 plus 17 is 28, or 17 plus 12 is 28?
Both are false because 12 + 17 = 29.
There are four oranges, and you take three. How many do you have?
You will have three oranges.
I have three apples. If you take away two, how many apples do you have?
2 apples (You took 2 from the original 3).
Tom has 8 candies. He eats half of them. How many candies does he have now?
4 candies (Half of 8 is 4).
Continue the sequence: 2, 4, 8, 16, 32 …
64 because you double each consecutive number.
What is half of 2 plus 2?
Half of 2 equals 1; 1 +2 = 3.
What should you place between 3 and 4 to make it bigger than 3 but smaller than 4?
It’s a decimal point: 3.4.
If you toss a coin five times, and it lands tails up each time, what are the chances it will land heads up the next time?
The answer: A coin lands either tails or heads, so there is a 50% probability of each outcome no matter how many times you toss a coin.
Amy has as many apples as there are months in a year. How many apples does she have?
12 apples.
A family has five sons, and each of them has a sister. How many kids does a family have in total?
The family has six kids – the five sons have one common sister.
An old woman dies on her 24th birthday. How can that be?
She was born on February 29, in a leap year. It occurs once every four years. Consequently, 24 x 4 = 96.
Mary has 7 cookies. She eats 2 of them. What percentage of her cookies did she eat?
28.6% (2/7 * 100 = 28.6%).
This number can be positive or negative, and it starts with I and ends with R. What is this number?
It’s an integer.
It’s round but not a circle and looks like an egg. What is it?
It’s an oval.
When David was eight, his little brother Alex was half his age. David is 30 now. How old is Alex?
The answer: Alex is 26.
A box contains 20 marbles. If 25% of the marbles are blue, how many marbles are blue?
5 marbles (25% of 20 is 5).
Figures with sides have it, but a circle doesn’t. What is it?
It’s an angle.
I am an odd number. If you subtract 10 from me, you get 15. What number am I?
25
(25 – 10 = 15).
I am thinking of a number. If you double it and then add 10, the result is 50. What number am I thinking of?
20
(2 * 20 + 10 = 50).
If a shirt costs $20 more than a hat, and the combined cost of both the shirt and the hat is $50, how much does the hat cost?
$15
(Shirt: $35, Hat: $15).
I am thinking of a number. If you add 5 to it and then multiply the result by 3, you get 24. What number am I thinking of?
3
(3 + 5 = 8, 8 * 3 = 24).
How can you make 45 using only 4?
You have to use fractions: 44 + 4/4 = 45 because 4/4 = 1.
Bob adds three numbers. Afterward, he multiplies the same numbers and gets the same result. What are these numbers?
The answer: 1, 2, 3.
The explanation: 1 + 2 +3 = 6; 1 x 2 x 3 = 6.
What if I say you can multiply any number by another and get the same answer? What is this number?
It’s zero. Multiplying anything by 0 = 0.