What has many keys but can’t open a single lock?

Replace the question mark with the correct number in the below-given picture?

Remove two matchsticks to make the below equation correct.

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

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?

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

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?