What you cannot hold but it is yours?

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

Can you count the number of triangles in the picture below?

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?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

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?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

What does this simple rebus mean?

What does this mathematical rebus means ?