If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Who are the happiest people in IPL match?

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?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?