A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

A blonde put eyeliner on her head. Why?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

Spot the cat in the picture below

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

I can be cracked, made, told, and played. What am I?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

Count the number of triangles in the picture below:

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