How can you make number one disappear by adding something to it?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

What has hands, but can’t clap?

When it is alive we sing, when it is dead we clap our hands. What is it?

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

What begins with T, ends with T, and has T in it?

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

When can we add 2 to 11 and get 1 as the correct answer?