Can you place six X (crosses) in below board without making three in a row in any way ?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

I’m tall when I’m young, and I’m short when I’m old. What am I?

What has a bottom at the top?

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.

Solve the rebus riddle in the picture below.

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

When does a USA Potato change its nationality?

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?