If eleven plus two equals one, what does nine plus five equal?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

What have one eye but still cannot see?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h.

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

Do You See It?