While some people look at them as a means to kill time, others take them as a challenge. We are talking about riddles, and not just any riddles, but the really hard riddles that can turn out to be your nightmares. If you solve them, there's no questioning your IQ, but if you can't ... it's alright! There are many people out there who can't. You can just scroll down and have a look at the answer. That though, will only add to your frustration, as the answers are pretty simple. You just need to think the right way. Our sincere advice, just try to think logically and answers will be right in front of you. Riddles and Brain Teasers with Answers 1) A large truck is crossing a bridge which is 1 mile long. The bridge can only hold 10,000 lbs, which is the exact weight of the truck at that moment. The truck makes it half way across the bridge and stops. A bird perches on the truck. Will the bridge collapse? 2) Six glasses are arranged in a row. The first three are full of juice, while the next three are absolutely empty. By moving only one glass, can you arrange them in such as manner that empty and full glasses lie in alternate order? 3) A fishing trawler with a ladder is anchored at the harbor. The distance between two steps of the ladder is 1 meter. If waves lashing against the wall rise half meter in every half an hour, how much time will it take for the six steps of the ladder go under water? 4) The ages of a father-son duo add up to 66. The father's age is the son's age reversed (i.e., if father is 30, son is 03 years old). How old could they be? 5) You have a barrel of oil, and you need to measure out just one gallon, but you only have one 3-gallon container and one 5-gallon container. How will you do it? 6) You have 15 gold bars and a balance scale. One of the bars is lighter than the other bars, but you can't tell the difference by feel. What is least number of times you could use the scale to determine which one is the light one? 7) An extraordinary earthworm is trying to build a house on the top of a tree which is 20 meters tall. Every day, the worm climbs 5 meters, but slips down by 2 meters. In this continues, how many days will the earthworm take to reach to the top of the tree? 8) You are standing in front of a room with one light bulb inside it. You cannot see if it is on or off. Outside the room there are three switches which are off. You may turn the switches any way you want to. You stop turning the switches, enter the room, and know which switch controls the light bulb. How? 9) If your sock drawer has six black socks, four brown socks, eight white socks, and two tan socks, how many socks would you have to pull out in the dark to be sure you had a matching pair? 10) A man is traveling with a fox, goose, and a sack of corn. He comes upon a stream which he has to cross using a tiny boat which only has place for two. He can only take himself and either the fox, goose, or the corn at a time. He cannot leave the fox alone with the goose or the goose alone with the corn. How does he get all safely over the stream? It's very difficult to say whether the aforementioned riddles are difficult or funny. If you solved them, you must have realized that they were pretty easy and fun to solve. If you didn't, you must be laughing at yourself for not being able to come up with these easy answers. In any case, what matters is the fact that you enjoyed solving them ... or at least trying to solve them.