Can you start the fire using two pieces of wood?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

What kind of tree can you carry in your hand?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

Who is that with a neck and no head, two arms and no hands? What is it?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

What is the riddle which can be asked all day with a different correct answer each time.