Count the Triangle in the figure given below:

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Look at the picture and find out which square is not linked with any of the other squares.

Can you write down eight eights so that they add up to one thousand?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?