Remove two matchsticks to make the below equation correct.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

Find the next number in the sequence

5 12 24 36 ?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

What does this mathematical rebus means ?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.