What number comes next in this sequence:
7 8 5 5 3 4 4 _

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

If an electric train is travelling south, then which way is the smoke going?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

John decided to give his bike 3 coats of paint. Which coat would go on the first?

A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Which is the correct shadow of the bird?

What brings you down but never up?