What happened when the wheel was invented?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

In the given picture, in how many ways can you read the word "Tiger"?

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?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?