Which number should replace the question mark?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

The Little ant seems to be always confused. Do you know why?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

Decode the movie name from the below picture?

Be active and find the killer in the picture Riddle below.