Can you find the thief by just looking at the picture below?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Ten coins have been arranged as you can see in the given picture. In this arrangement, a triangle is formed pointing upwards. You have to invert the position of the triangle and make it point downwards while changing the position of 3 coins only. Can you do it?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Can you spot the man between the coffee bean in the picture below ?

Why despite killing dozens of people Charley and Wilma were not punished?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?