Odd Number Becomes Even
Can you solve this classic number riddle before getting hung?
Hint: Spell the number out.
Finding The Car Riddle
There are three doors in front of you. New car waits behind one of them; goat is hidden behind each of the remaining two. You may open one of the doors and get what is behind them. You want the car off course. You choose your door. Moderator (who knows where the car is) than opens one of the remaining doors and shows that there is goat. Now he gives you the opportunity to change your decision.
You are standing in front of two closed doors. Will you change your decision?
You are standing in front of two closed doors. Will you change your decision?
Hint: It matters whether you change your decision or not.
Imagine there were one hundred doors and moderator would open all but two.
Its better to change the door.
You win in case you chose wrong door at first (odds 2-in-3).
If you dont change the door you win only in case you originally picked the correct door (1-in-3).
Did you answer this riddle correctly?
YES NO
You win in case you chose wrong door at first (odds 2-in-3).
If you dont change the door you win only in case you originally picked the correct door (1-in-3).
Did you answer this riddle correctly?
YES NO
The Spider Sports Car
Hint:
Super Parking Riddle
Hint:
The Special Numbers Riddle
Hint:
It is the numbers from 1 to 9 in alphabetical order.
Eight
Five
Four
Nine
One
Seven
Six
Three
Two Did you answer this riddle correctly?
YES NO
Eight
Five
Four
Nine
One
Seven
Six
Three
Two Did you answer this riddle correctly?
YES NO
The Four Digit Number Riddle
Can you find the four digit number in which the first digit is one fourth of the last digit, the second digit is 6 times the first digit, and the third digit is the second digit plus 3?
Hint:
The Number Pattern Riddle
Hint:
31131211131221.
Each line, excluding the first, describes the one before it.
1
11 <---describes 1st line, read as "one 1"
21 <---describes 2nd line, read as "two 1's"
1211 <---describes 3rd line, read as "one 2 two 1's" Did you answer this riddle correctly?
YES NO
Each line, excluding the first, describes the one before it.
1
11 <---describes 1st line, read as "one 1"
21 <---describes 2nd line, read as "two 1's"
1211 <---describes 3rd line, read as "one 2 two 1's" Did you answer this riddle correctly?
YES NO
Match The Number Of Letters
This can be a little tricky if you misread the riddle. There's a little known fact in this once you've found the answer. Also being that the answers are limited, it's recommended to challenge yourself and begin the timer to solve this in under 30 seconds.
Spell me out and I am the number of a month in which I also match the number of letters exactly of this month. What am I?
Hint: There are only 12 months
Jedi's Favorite Car Riddle
Hint:
Softball Car Dealer
Hint:
The Prime Number Riddle
Two hundred people in an auditorium are asked to think of a single digit number from 1 to 9 inclusive and write it down. All those who wrote down a prime number are now asked to leave. Ninety people remain behind in the hall. How many of these are expected to have written down an odd number?
Hint: Remember that 1 is not a prime number.
Those that remain behind must have written {1,4,6,8,9} and from this only {1,9} are odd. The probability of an odd number is thus 2/5.
Expected number of odds is 2/5 * 90 = 36 Did you answer this riddle correctly?
YES NO
Expected number of odds is 2/5 * 90 = 36 Did you answer this riddle correctly?
YES NO
The Number Four Be Half Of Five Riddle
Hint:
IV, the Roman numeral for four, which is “half” (two letters) of the word five. Did you answer this riddle correctly?
YES NO
YES NO
Spider Car Riddle
Hint:
The Correct Number Riddle
Hint:
121
Explanation
Tables consist of squares of the number from 4 to 12.
11^2 = 121. Did you answer this riddle correctly?
YES NO
Explanation
Tables consist of squares of the number from 4 to 12.
11^2 = 121. Did you answer this riddle correctly?
YES NO
Find Those Missing Numbers Riddle
Hint:
The number missing on the left is 8 and the one on right is 7.
Explanation:
The pattern:
The number in the center of triangle is the square root of the sum of the numbers sitting outside on the corners.
Thus,
10 + 22 + 4 = 36
Square Root of 36 = 6
In the same manner:
10 + 42 + 12 = 64
Square Root of 64 = 8
12 + 22 + 15 = 49
Square Root of 49 = 7 Did you answer this riddle correctly?
YES NO
Explanation:
The pattern:
The number in the center of triangle is the square root of the sum of the numbers sitting outside on the corners.
Thus,
10 + 22 + 4 = 36
Square Root of 36 = 6
In the same manner:
10 + 42 + 12 = 64
Square Root of 64 = 8
12 + 22 + 15 = 49
Square Root of 49 = 7 Did you answer this riddle correctly?
YES NO
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