Find the next number in the series.
1 10 24 43 67 ?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

Why is the Hole below a Lock?

You are stuck on an island where you have nothing. You find four pieces of paper somewhere on the island. What will be your strategy to escape from the island safely?

PS: No other resource is available to you on the island, neither can you build anything.

How is a fly different from a mosquito?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?