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?

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?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

How many triangles can you count in the figure given?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

What can jump higher than a building?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?