In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

what's the probability of getting a king or a queen from a pack of 52 cards?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

Can you find the hidden animal in the picture below?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

What type of tree can I carry in my hand?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?