Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

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

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

What can you catch but never throw?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

What jumps when it walks and sits when it stands?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C