What has no start, end, or centre?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

How far can you walk into the woods?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?