The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

The cream is heavier than Milk. True or False?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

If all the below statements are true

1. Gianni was either in Italy or France in 1997.
2. If Gianni did not kill Versace, Hilton must have killed him.
3. If Versace died of suffocation, then either Gianni killed him or Versace committed suicide.
4. If Gianni was in Italy in 1997, then Gianni did not kill Versace.
5. Versace died of suffocation, but he did not kill himself.

Who killed Versace and where was Gianni in 1997?

What's the only room from which no one can enter or leave

What's a single-digit number with no value?