By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What does this say?

XLR8

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

Two friends were stuck in a cottage. They had nothing to do and thus they started playing cards. Suddenly the power went off and Friend 1 inverted the position of 15 cards in the normal deck of 52 cards and shuffled it. Now he asked Friend 2 to divide the cards into two piles (need not be equal) with equal number of cards facing up. The room was quite dark and Friend 2 could not see the cards. He thinks for a while and then divides the cards in two piles.

On checking, the count of cards facing up is same in both the piles. How could Friend 2 have done it ?

How many triangles are there in the picture below?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

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

When it's bad luck to meet a black cat?