#211 - Trick Question
Can you circle exactly four of these numbers such that the total is twelve?
1 6 1
6 1 6
1 6 1
6 1 6
Turn the grid upside down. Circle the numbers 1, 9, 1, 1 When you flip it upside down the 6 becomes 9
#212 - Sherlock Holmes Cipher Puzzle
Sherlock, A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note:
710 57735 34 5508 51 7718
Currently, there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?
Bill. If you read the message upside down, you'll notice that the numbers resemble letters and that those letters form legible sentences. The message is 'Bill is boss. He sells oil.'
#213 - IAS Interview RIDDLE
How can you drop a raw egg from a height onto a concrete floor without cracking it?
Concrete floors are very hard to crack
#214 - Statement Question Riddle
Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.
The second statement
#215 - Sequence Quiz
Find Next Number in the Sequence
2 9 3 1 8 4 3 6 5 7 ?
'2'
This single sequence in fact consists of two sequences: the first sequence is 2-3-4-5-... and the second sequence is 9-18-36-72-... . To make the puzzle harder, all digits have been placed apart. Conclusion: the next term in the sequence is a '2'.
#216 - Puzzle Boat
At the local model boat club, four friends were talking about their boats.
There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.
Alan didn't have a yellow boat. Brian didn't have a red boat, but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.
Can you work out which friend had which coloured boats?
Alan had a red boat and a green boat.
Brian had a green boat and a blue boat.
Charles had a yellow boat and a red boat.
Darren had a blue boat and a yellow boat.
#217 - Building Puzzle
A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?
20
Just count the nines in the numbers: 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99.
Note: 99 contains TWO nines!
#219 - November Maths Puzzle
The Puzzle: A girl, a boy, and a dog start walking down a road.
They start at the same time, from the same point, in the same direction.
The boy walks at 5 km/h, the girl at 6 km/h.
The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?
10km
Speed us 10km/h
#220 - Friday Riddle
The equation shown below is not correct:
26-63=1
Can you make the equation correct by moving just one symbol?
Move the 6 up just a little bit.
2pow(6) -63 =1