Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Can you name four days which start with the letter 'T'?

Move three sticks of the spiral below to form a square.

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

If eleven plus two equals one, what does nine plus five equal?