#1111 - Mathematical Riddle
Using only two 2's and any combination of mathematical signs, symbols and functions can you make 5?
SQRT(.2 ^ -2)
Take .2 and raise it to the power of -2 and then take the square root.
#1112 - Mind Teaser
An explorer goes on an exposition in the jungle. He sets up camp in the middle of the jungle. The next morning he sees something with a head and a tail, but he is not afraid. What did he see in his bag?
A Coin
#1113 - February Series Question
Find The Next Number
12 13 15 17 111 113 117 119 123 ?
129.
These are the first 10 prime numbers (2, 3, 5...) prefixed with a 1
#1114 - Unique Riddle
What is the unique characteristic of the following words:
coughing, thirsty, defiant
Each word has 3 consecutive letters of the alphabet- couGHIng, thiRSTy, DEFiant
#1115 - Playing Cards Puzzle
On your travels you come to an old man on the side of the road holding three cards from a standard deck face down. Trying to make conversation you ask him what the three cards are.
He tells you, 'To the left of the queen, are one or two jacks. To the right of the jack, are one or two jacks. To the right of the club, are one or two diamonds. To the left of the diamond, are one or two diamonds.' What are the three cards?
From left to right: the jack of clubs, jack of diamonds, and queen of diamonds.
OR: jack of diamonds, jack of clubs, queen of diamonds.
#1116 - Maths Quiz
Fred can eat 27 chocolates in a hour, Alice can eat 2 chocolates in 10 minutes, and Kelly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a large box of 120 chocolates whilst watching a movie?
2 hours.
In one hour, Fred eats 27 chocolates, Alice eats 12, and Kelly eats 21. A total of 60 chocolates. Therefore 120 chocolates would take 120 ÷ 60 = 2 hours. QED.
#1117 - Kid Riddle
What object has keys that open no locks, space but no room, and you can enter but not go in?
A computer keyboard.
#1119 - Answer a Maths Riddle
Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.
3211000
#1120 - Poem Riddle
I have streets but no pavement,
I have cities but no buildings,
I have forests but no trees,
I have rivers yet no water.
What am I?
A Map