Which part of London exists in France as well ?
I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King. Who am I ?
A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result. Can you find how bias is the floor in this case?
Before reading ahead, you must know the fact that only one of the people here is telling the truth. A says that B is lying. B says that C is lying. C says both A and B are lying. Can you find out who is speaking the truth?
What came first, the chicken or the egg?
How many minutes are there in Feb 2017? Note: The shortest answer is the correct answer.
I am the fastest animal but cannot climb the tree. What am I?
What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?
What is the last thing you take off before bed?
You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?
Imagine you are in a room with no windows or doors. How will you get out?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.