Can you count the number of triangles in the given figure?

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 can you subtract the number 5 from 25?

In a school, 280 students studied chemistry, 254 students studied physics and 280 students studied biology.

97 students studied chemistry as well as physics, 138 students studied physics as well as biology and 152 students studied chemistry as well as biology.

73 students studied all the three branches.

Can you find out the total number of students?

What does below chemistry rebus means?

What kind of band never plays music?

Replace the question mark with the number below given a simple math problem.

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Can you decipher the two rows to find the hidden word?

Spot 5 differences in two Christmas tree below: