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?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Can you name four days which start with the letter 'T'?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

I have an eye but still cannot see.

Who am I?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

If two's company, and three's a crowd, then whats four and five ?

Can you find the missing piece of the Porsche?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.