Two dogs are sitting on a porch - a fat dog and a thin dog. The little dog is the son of the fat dog, but the fat dog is not the father of the thin dog. Can you explain?

Answer: The fat dog is the mother.

More Tricky Riddles with answers

More Tricky Riddles

Two fathers were talking. The father of a teenager was complaining about his son but the other father said that his son is perfect. He’s not bossy, he’s not impulsive, he’s not disrespectful, he doesn’t have anger issues. How can his son be so perfect?
Two grandmothers, with their two granddaughters; Two husbands, with their two wives; Two fathers, with their two daughters; Two mothers, with their two sons; Two maidens, with their two mothers; Two sisters, with their two brothers; Yet only six in all lie buried here; All born legitimate, from incest clear. How can this be?
Two men are in a desert. They both have packs on. One of the guys is dead. The guy who is alive has his pack open, the guy who is dead has his pack closed. What is in the pack?
Two men were playing tennis. They played five sets and each man won three sets. How can this be possible?
Two sentries 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 that his companion was smiling?
Two travellers spend from 12 o'clock to 6 o'clock walking along a level road, up a hill and back again. Their pace is 4 mph on the level, 3 mph uphill, and 6 mph downhill. How far do they walk and at what time do they reach the top of the hill?
Use all letters of this sentence once each only to spell out three animals. 'TALL ELEPHANT OR APEMAN' What are the three animals?
Use me well and I am everybody, Scratch my back and I am nobody.
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble. What are they?
We are five little objects of an everyday sort. You will find us all in a tennis court. What are we?
We are five little things of an everyday sort, You will find us all in a tennis court.
We hurt without moving. We poison without touching. We bear the truth and the lies. We are not to be judged by our size. What are we?