Cristina was born in 1888. She just had her 30th birthday today how did that happen?

why number 8549176320 is one of a kind?

I’m tall when I’m young, and I’m short when I’m old. What am I?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Can you replace the question mark with the correct number in the below table sequence?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

There is a place where if I stand up straight, I will still be considered sideways.

What does below rebus means ?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes