You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What is the last thing you take off before bed?

what does the below rebus mean?

A car is crossing a 20 km-long bridge. The bridge can support at most 1500kg of weight over it. If somehow, the weight on the bridge becomes more than that, it will break.

Now, the weight of the car is exactly 1500kg. At the midway, a bird comes and sits on the roof of the car. This bird weighs exactly 200 grams.
Can you tell if the bridge breaks at this point or not?

Can you decipher the two rows to find the hidden word?

A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?