What has 13 hearts but no other organs?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What is common among 11, 69, and 88?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

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

Can you find the hidden animal in the picture below?

What seven-letter word has hundreds of letters in it?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

How can you take 2 from 5 and leave 4?