If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Next Number in the Series,

5, 16, 49, 104, ?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

Can you name some countries which do not have the alphabet 'A' in them?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

I shave every day, but my beard stays the same. What am I?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98