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

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Identify the hidden meaning behind this picture?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Whats the next number in the below number sequence pattern.

During which month do people sleep the least?