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

10+10 and 11+11 can give you the same answer.

Explain how?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

A sundial has the fewest moving parts of any timepiece. Which has the most?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

In The Image Below Which clock is the odd one out?

I have eight fingers and two thumbs but I do not live. What Am I?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

Can you identify the hidden rebus in the image below?