What is both possible and impossible at the same time?

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?

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

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

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?