Spot 5 differences in two Christmas tree below:
What goes up but never comes down?
Can you find the odd number in the following? 2716, 4135, 5321 and 7145
What is the difference between a jeweller and a jailer?
The first box has two white balls. The second box has two black balls. The third box has a white and a black ball. Boxes are labeled but all labels are wrong! You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball. How many such operations are necessary to correctly label the boxes?
Count the number of squares in the picture below.
What number do you get when you multiply all of the numbers on a telephone's number pad?
How many pluses should we put between the digits of 987654321 to get a total of 99, and where?
It's a protector. It sits on a bridge. One individual can see directly through it, while others wonder what it hides. What is it?
Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?
Using Only Five 5's and any mathematical operator make sum as 37
The inventor of the Rubik’s Cube didn’t realize he’d built a puzzle until he scrambled it the first time and tried to restore it.
