I am lying and I always lie. Tell me whether I am lying or telling the truth.

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

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

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?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Who is that with a neck and no head, two arms and no hands? What is it?

Can you find the six hidden animals in the picture below?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

Can you solve below mathematical equation?

2^1234 - 2^1233