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

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

How many triangles are there on the puzzle below?

How many triangles can you count in the figure given?

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What is the longest word in the dictionary?

what does the below rebus mean?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?