What goes up but never comes down?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Can anyone tell me a word in the English dictionary which has a silent 'z'?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

A man fell off a smuggling boat into deep water. He could not swim and he was not wearing anything to keep him afloat. It took 30 minutes for the people on the boat to realize someone was missing. The missing man was rescued two hours later on the return trip. Why didn't he drown? Note:- He didn't know swimming, the sea was deep, and He wasn't holding anything

Why Wine Glass Stem is so long?