Can you find a number that lies one third of the distance between 1/3 and 2/3?

What does this Rebus Picture mean?

What is wrong in the below Picture?

What Adam and Eve do not have but the rest of the people have?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

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

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

I am the fastest animal but cannot climb the tree. What am I?