Solve the following series:
AZ, GT, MN, __, YB

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

What building has the most stories?

Count the number of squares in the picture below.

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?

Find the next number in the sequence

1, 2, 6, 21, 88, __?