What is so fragile that saying its name breaks it?

What jumps when it walks and sits when it stands?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

Count the squares in the matchstick puzzle below?

I add 5 to 9 and get 2. The answer is correct, so what am I?

What does this mean?

CCCCCCC

What 5-letter word typed in all capital letters can be read the same upside down?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

What number comes next in this sequence:
7 8 5 5 3 4 4 _