Cristina was born in 1888. She just had her 30th birthday today how did that happen?

What has hands, but can’t clap?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Solve this riddle by finding the odd one out from the rest.

What does this mean?

CCCCCCC

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Can you make a six-letter word using the letters N, A and B ?