trolley813's user avatar
trolley813's user avatar
trolley813's user avatar
trolley813
  • Member for 7 years, 11 months
  • Last seen this week
36 votes
Accepted

Cut a cake into 3 equal portions with only a knife

34 votes
Accepted

x⌊x⌊x⌊x⌋⌋⌋ = 2020

26 votes
Accepted

Can you open the door or die? v2

20 votes
Accepted

Perpetual Motion Machine

20 votes
Accepted

Strange Math 2.2

19 votes

The answer is the same (tricky puzzle!)

19 votes
Accepted

A Riley riddle to end the year!

16 votes

Short but impossible math problem

16 votes
Accepted

Four π's to make any integer

14 votes
Accepted

I make things stop and start - What am I?

14 votes

Match the blocks

13 votes
Accepted

Unknown by none, Doubted by a flat few

13 votes

How should they divide the money?

13 votes

Triparting a Garden

13 votes
Accepted

I can't remember her birthday!

13 votes

How can four be the half of five?

11 votes

smallest number obtainable from 2020

11 votes

What did she name her son?

11 votes

Make 2019 with single digits

10 votes
Accepted

Venn diagram with 7 equal regions

10 votes
Accepted

A rectangle in a rectangular hole

10 votes

The children of the sultan

10 votes
Accepted

Can a fair coin be used to simulate an arbitrary weighted coin, with on average only two flips?

8 votes
Accepted

First digit of 2020!

8 votes
Accepted

Knights and Queen puzzle

7 votes
Accepted

A new puzzle - Sudoku X V

7 votes
Accepted

The Russian machine has a flaw

7 votes

Place the numbers 1-7 in the squares so that each row and columns adds up to the same total

7 votes

I Can Stand, But I Don't Have Legs

7 votes

In honour to 2004

1
2 3 4 5
7