What is black when you buy it, red when you use it, and gray when you throw it away?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

Can you find the six hidden animals in the picture below?

What has hands, but can’t clap?

What 5-letter word typed in all capital letters can be read the same upside down?

Can you solve the below tricky visual equation?

What can you hold in your right hand, but never in your left hand?

What English word has three consecutive double letters?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?