If eleven plus two equals one, what does nine plus five equal?
A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log. Can you calculate the weight of the entire wooden log?
How many times can you subtract the number two from the number fifty?
When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?
Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?
What's the only room from which no one can enter or leave
I cry without having a voice. I fly without having wings. I bite without having teeth. I whisper without a mouth. Who am I?
There was an aeroplane crash, every single person died, but two people survived. How is this possible?
A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes. How long will it take the patient to consume all the five tablets?
Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols. 9 # 8 # 7 # 6 # 5 # 4 = 91
Move four matchsticks to the below square to form three squares?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.