What is both possible and impossible at the same time?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Replace the question mark in the picture below.

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

What does this Rebus Picture mean?