California Governor Gavin Newsom accused tech billionaire Elon Musk of spreading "lies" about the state's response to the LA wildfires, escalating their online row over growing misinformation. President-elect Donald Trump and Musk have stepped up criticism of the governor's handling of the devastating blazes that have killed at least 24 people and displaced tens of thousands as winds intensified. Musk's personal X account has courted criticism for amplifying misinformation. Wildfire misinformation was also swirling on other social media platforms.

SEE THE GROWING FLOOD OF MISINFORMATION ON WILDFIRES

Pete Hegseth, who President-elect Donald Trump tapped to be his Secretary of Defense, is one of several nominees being questioned this week. Hegseth turned heads by calling for the restoration of the names of US military bases that honored Confederate generals, including Fort Bragg (now Liberty) in North Carolina. Hegseth, a combat veteran and former Fox News host, is expected to face sharp questioning during Senate committee confirmation hearings that begin Tuesday. 

HEGSETH'S ARGUMENT FOR CONFEDERATE GENERALS' NAMES

A descendant of one of Jack the Ripper's victims has demanded a new inquest into one of history's most notorious serial killers, after DNA evidence suggested the murderer was a Polish barber. The true identity of Jack the Ripper, whose grisly murders terrorized east London in 1888, has been a mystery ever since. After extracting DNA from a shawl recovered from the scene of one of the killings, Jack the Ripper sleuth Russell Edwards claimed the murderer was Aaron Kosminski.

SEE THE LATEST THEORIES ON LONDON'S OLDEST WHODUNIT 

What is considered to be the oldest cold case to be solved in the US? 

Monday's answer: Nowruz, the Persian New Year celebration, is considered the "world's oldest festival". It has been observed for over 3,000 years and marks the arrival of spring on the Iranian calendar.