You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

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

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

O_er_t_o_

Complete the missing letters of the given word.

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?