Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

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

When does a USA Potato change its nationality?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

I make two people out of one. What am I?

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

Solve the counting riddle by identifying the number of triangles in the given picture.