A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

What is both possible and impossible at the same time?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

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?

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

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

How Come ??

How many triangles are there in the picture below?

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========