What number should come in place of the question mark below?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

The Federal bank of London is abducted by the robbers. The head of the robbers asked the cashier to empty their money vault to them and when suddenly cashier got a call from her father. To avoid any suspicion, the robber asked the cashier to pick the call and reply her father in the shortest manner possible.

The cashier told her father "Is there an emergency father, Call me when you are free and I will help you in your furnishing" and then the cashier hung up the phone.

After 10 minutes, police arrived at the crime scene.

How did the police know about the robbery?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What is the largest number you can write with just 3 digits?

What number divided by 4 is the same as that number minus 4?

What famous saying does this rebus mean?

COME SERVED <---
COME SERVED
COME SERVED
COME SERVED
COME SERVED