You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What is full of holes but still holds water?

Solve the counting riddle by identifying the number of triangles in the given picture.

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Solve the mathematical equation in the picture below.

How can you take 2 from 5 and leave 4?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

In the image given, you can find several triangles. Can you count them all?