Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

You can see it everyday, But cannot touch it at will. What is it?

You are given 2 eggs.
You have access to a 100-storey building.
Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor, Both eggs are identical.
You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

How many times do a clock's hands overlap in a day ?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

John's five friends Rachel, Jacob, Phoebe, Joey and Chandler live on the same road.

Rachel lives in the house: A, Jacob lives in the house: B, Phoebe lives in the house: C, Joey lives in the house:D, Chandler lives in the house: E

Mathematically
B*C*D = 1260
B + C + D = 2E
2A = E

The road numbers run from 2 to 222.

Can you tell me the house number of each of John's friends?

How many triangles can you find in this given picture?