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

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

The world's largest Thanksgiving turkey was on display at a fair. Everyone was admiring it when suddenly a woman ran up and shot the turkey and left. Everyone knew her yet nobody made any attempts to stop or report her. Why?

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?

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?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?