A man dies of old age on his 25 birthday. How is this possible?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Can you place three balls such that the equation shown in the picture holds true?

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.

What does Alexander the Great and Winnie the Pooh have in common?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

Can you find the key in the picture below?